Town State HUC 8 Name Acton MA Concord - Massachusetts Alexandria NH Pemigewasset - New Hampshire Allenstown NH Merrimack - Massachusetts, New Hampshire Alton NH Merrimack - Massachusetts, New Hampshire Alton NH Winnipesauke - New Hampshire Amesbury MA Merrimack - Massachusetts, New Hampshire Amherst NH Merrimack - Massachusetts, New Hampshire Andover NH Contoocook - New Hampshire Andover NH Merrimack - Massachusetts, New Hampshire Andover MA Merrimack - Massachusetts, New Hampshire Andover NH Pemigewasset - New Hampshire Antrim NH Contoocook - New Hampshire Ashburnham MA Merrimack - Massachusetts, New Hampshire Ashburnham MA Nashua - Massachusetts, New Hampshire Ashby MA Merrimack - Massachusetts, New Hampshire Ashby MA Nashua - Massachusetts, New Hampshire Ashland MA Concord - Massachusetts Ashland NH Pemigewasset - New Hampshire Ashland NH Winnipesauke - New Hampshire Atkinson NH Merrimack - Massachusetts, New Hampshire Auburn NH Merrimack - Massachusetts, New Hampshire Ayer MA Merrimack - Massachusetts, New Hampshire Ayer MA Nashua - Massachusetts, New Hampshire Barnstead NH Merrimack - Massachusetts, New Hampshire Bedford MA Concord - Massachusetts Bedford NH Merrimack - Massachusetts, New Hampshire Bedford MA Merrimack - Massachusetts, New Hampshire Belmont NH Merrimack - Massachusetts, New Hampshire Belmont NH Winnipesauke - New Hampshire Bennington NH Contoocook - New Hampshire Bennington NH Merrimack - Massachusetts, New Hampshire Benton NH Pemigewasset - New Hampshire Berlin MA Concord - Massachusetts Berlin MA Nashua - Massachusetts, New Hampshire Bethlehem NH Pemigewasset - New Hampshire Billerica MA Concord - Massachusetts Billerica MA Merrimack - Massachusetts, New Hampshire Bolton MA Concord - Massachusetts Bolton MA Nashua - Massachusetts, New Hampshire Boscawen NH Contoocook - New Hampshire Boscawen NH Merrimack - Massachusetts, New Hampshire Bow NH Merrimack - Massachusetts, New Hampshire Boxborough MA Concord - Massachusetts Boxborough MA Merrimack - Massachusetts, New Hampshire Boxford MA Merrimack - Massachusetts, New Hampshire Boylston MA Concord - Massachusetts Boylston MA Nashua - Massachusetts, New Hampshire Bradford NH Contoocook - New Hampshire Bridgewater NH Pemigewasset - New Hampshire Bristol NH Pemigewasset - New Hampshire Brookfield NH Winnipesauke - New Hampshire Brookline NH Merrimack - Massachusetts, New Hampshire Brookline NH Nashua - Massachusetts, New Hampshire Burlington MA Merrimack - Massachusetts, New Hampshire Campton NH Pemigewasset - New Hampshire Canaan NH Pemigewasset - New Hampshire Candia NH Merrimack - Massachusetts, New Hampshire Canterbury NH Merrimack - Massachusetts, New Hampshire Carlisle MA Concord - Massachusetts Center Harbor NH Pemigewasset - New Hampshire Center Harbor NH Winnipesauke - New Hampshire Chelmsford MA Concord - Massachusetts Chelmsford MA Merrimack - Massachusetts, New Hampshire Chester NH Merrimack - Massachusetts, New Hampshire Chichester NH Merrimack - Massachusetts, New Hampshire Clinton MA Concord - Massachusetts Clinton MA Nashua - Massachusetts, New Hampshire Concord MA Concord - Massachusetts Concord NH Contoocook - New Hampshire Concord NH Merrimack - Massachusetts, New Hampshire Concord MA Merrimack - Massachusetts, New Hampshire Danbury NH Contoocook - New Hampshire Danbury NH Pemigewasset - New Hampshire Danville NH Merrimack - Massachusetts, New Hampshire Deerfield NH Merrimack - Massachusetts, New Hampshire Deering NH Contoocook - New Hampshire Deering NH Merrimack - Massachusetts, New Hampshire Derry NH Merrimack - Massachusetts, New Hampshire Dorchester NH Pemigewasset - New Hampshire Dracut MA Merrimack - Massachusetts, New Hampshire Dublin NH Contoocook - New Hampshire Dunbarton NH Contoocook - New Hampshire Dunbarton NH Merrimack - Massachusetts, New Hampshire Dunstable MA Merrimack - Massachusetts, New Hampshire Dunstable MA Nashua - Massachusetts, New Hampshire East Kingston NH Merrimack - Massachusetts, New Hampshire Ellsworth NH Pemigewasset - New Hampshire Epsom NH Merrimack - Massachusetts, New Hampshire Farmington NH Merrimack - Massachusetts, New Hampshire Fitchburg MA Nashua - Massachusetts, New Hampshire Framingham MA Concord - Massachusetts Francestown NH Contoocook - New Hampshire Francestown NH Merrimack - Massachusetts, New Hampshire Franconia NH Pemigewasset - New Hampshire Franklin NH Merrimack - Massachusetts, New Hampshire Franklin NH Pemigewasset - New Hampshire Franklin NH Winnipesauke - New Hampshire Gardner MA Nashua - Massachusetts, New Hampshire Georgetown MA Merrimack - Massachusetts, New Hampshire Gilford NH Merrimack - Massachusetts, New Hampshire Gilford NH Winnipesauke - New Hampshire Gilmanton NH Merrimack - Massachusetts, New Hampshire Gilmanton NH Winnipesauke - New Hampshire Goffstown NH Merrimack - Massachusetts, New Hampshire Goshen NH Contoocook - New Hampshire Grafton MA Concord - Massachusetts Grafton NH Pemigewasset - New Hampshire Greenfield NH Contoocook - New Hampshire Greenfield NH Merrimack - Massachusetts, New Hampshire Greenville NH Merrimack - Massachusetts, New Hampshire Greenville NH Nashua - Massachusetts, New Hampshire Groton MA Merrimack - Massachusetts, New Hampshire Groton MA Nashua - Massachusetts, New Hampshire Groton NH Pemigewasset - New Hampshire Groveland MA Merrimack - Massachusetts, New Hampshire Hampstead NH Merrimack - Massachusetts, New Hampshire Hancock NH Contoocook - New Hampshire Harrisville NH Contoocook - New Hampshire Hart's Location NH Pemigewasset - New Hampshire Harvard MA Concord - Massachusetts Harvard MA Merrimack - Massachusetts, New Hampshire Harvard MA Nashua - Massachusetts, New Hampshire Haverhill MA Merrimack - Massachusetts, New Hampshire Hebron NH Pemigewasset - New Hampshire Henniker NH Contoocook - New Hampshire Henniker NH Merrimack - Massachusetts, New Hampshire Hill NH Contoocook - New Hampshire Hill NH Pemigewasset - New Hampshire Hillsborough NH Contoocook - New Hampshire Holden MA Nashua - Massachusetts, New Hampshire Holderness NH Pemigewasset - New Hampshire Holderness NH Winnipesauke - New Hampshire Hollis NH Merrimack - Massachusetts, New Hampshire Hollis NH Nashua - Massachusetts, New Hampshire Holliston MA Concord - Massachusetts Hooksett NH Merrimack - Massachusetts, New Hampshire Hopkinton MA Concord - Massachusetts Hopkinton NH Contoocook - New Hampshire Hopkinton NH Merrimack - Massachusetts, New Hampshire Hubbardston MA Nashua - Massachusetts, New Hampshire Hudson MA Concord - Massachusetts Hudson NH Merrimack - Massachusetts, New Hampshire Hudson NH Nashua - Massachusetts, New Hampshire Jaffrey NH Contoocook - New Hampshire Kensington NH Merrimack - Massachusetts, New Hampshire Kingston NH Merrimack - Massachusetts, New Hampshire Laconia NH Winnipesauke - New Hampshire Lancaster MA Nashua - Massachusetts, New Hampshire Lawrence MA Merrimack - Massachusetts, New Hampshire Leominster MA Nashua - Massachusetts, New Hampshire Lexington MA Merrimack - Massachusetts, New Hampshire Lincoln MA Concord - Massachusetts Lincoln MA Merrimack - Massachusetts, New Hampshire Lincoln NH Pemigewasset - New Hampshire Litchfield NH Merrimack - Massachusetts, New Hampshire Littleton MA Concord - Massachusetts Littleton MA Merrimack - Massachusetts, New Hampshire Livermore NH Pemigewasset - New Hampshire Londonderry NH Merrimack - Massachusetts, New Hampshire Loudon NH Merrimack - Massachusetts, New Hampshire Lowell MA Concord - Massachusetts Lowell MA Merrimack - Massachusetts, New Hampshire Lunenburg MA Nashua - Massachusetts, New Hampshire Lyme NH Pemigewasset - New Hampshire Lyndeborough NH Merrimack - Massachusetts, New Hampshire Manchester NH Merrimack - Massachusetts, New Hampshire Marlborough MA Concord - Massachusetts Mason NH Merrimack - Massachusetts, New Hampshire Mason NH Nashua - Massachusetts, New Hampshire Maynard MA Concord - Massachusetts Meredith NH Pemigewasset - New Hampshire Meredith NH Winnipesauke - New Hampshire Merrimac MA Merrimack - Massachusetts, New Hampshire Merrimack NH Merrimack - Massachusetts, New Hampshire Methuen MA Merrimack - Massachusetts, New Hampshire Middleton NH Winnipesauke - New Hampshire Milford NH Merrimack - Massachusetts, New Hampshire Milford NH Nashua - Massachusetts, New Hampshire Mont Vernon NH Merrimack - Massachusetts, New Hampshire Moultonborough NH Pemigewasset - New Hampshire Moultonborough NH Winnipesauke - New Hampshire Nashua NH Merrimack - Massachusetts, New Hampshire Nashua NH Nashua - Massachusetts, New Hampshire Natick MA Concord - Massachusetts Nelson NH Contoocook - New Hampshire New Boston NH Merrimack - Massachusetts, New Hampshire New Durham NH Merrimack - Massachusetts, New Hampshire New Durham NH Winnipesauke - New Hampshire New Hampton NH Pemigewasset - New Hampshire New Hampton NH Winnipesauke - New Hampshire New Ipswich NH Contoocook - New Hampshire New Ipswich NH Merrimack - Massachusetts, New Hampshire New Ipswich NH Nashua - Massachusetts, New Hampshire New London NH Contoocook - New Hampshire Newbury NH Contoocook - New Hampshire Newbury MA Merrimack - Massachusetts, New Hampshire Newburyport MA Merrimack - Massachusetts, New Hampshire Newton NH Merrimack - Massachusetts, New Hampshire North Andover MA Merrimack - Massachusetts, New Hampshire North Reading MA Merrimack - Massachusetts, New Hampshire Northborough MA Concord - Massachusetts Northfield NH Merrimack - Massachusetts, New Hampshire Northfield NH Winnipesauke - New Hampshire Northwood NH Merrimack - Massachusetts, New Hampshire Orange NH Pemigewasset - New Hampshire Orford NH Pemigewasset - New Hampshire Ossipee NH Winnipesauke - New Hampshire Paxton MA Nashua - Massachusetts, New Hampshire Pelham NH Merrimack - Massachusetts, New Hampshire Pembroke NH Merrimack - Massachusetts, New Hampshire Pepperell MA Nashua - Massachusetts, New Hampshire Peterborough NH Contoocook - New Hampshire Peterborough NH Merrimack - Massachusetts, New Hampshire Piermont NH Pemigewasset - New Hampshire Pittsfield NH Merrimack - Massachusetts, New Hampshire Plaistow NH Merrimack - Massachusetts, New Hampshire Plymouth NH Pemigewasset - New Hampshire Princeton MA Nashua - Massachusetts, New Hampshire Rindge NH Contoocook - New Hampshire Rumney NH Pemigewasset - New Hampshire Rutland MA Nashua - Massachusetts, New Hampshire Salem NH Merrimack - Massachusetts, New Hampshire Salisbury NH Contoocook - New Hampshire Salisbury NH Merrimack - Massachusetts, New Hampshire Salisbury MA Merrimack - Massachusetts, New Hampshire Salisbury NH Pemigewasset - New Hampshire Sanbornton NH Pemigewasset - New Hampshire Sanbornton NH Winnipesauke - New Hampshire Sandown NH Merrimack - Massachusetts, New Hampshire Sandwich NH Pemigewasset - New Hampshire Sandwich NH Winnipesauke - New Hampshire Seabrook NH Merrimack - Massachusetts, New Hampshire Sharon NH Contoocook - New Hampshire Sharon NH Merrimack - Massachusetts, New Hampshire Sherborn MA Concord - Massachusetts Shirley MA Nashua - Massachusetts, New Hampshire Shrewsbury MA Concord - Massachusetts South Hampton NH Merrimack - Massachusetts, New Hampshire Southborough MA Concord - Massachusetts Springfield NH Contoocook - New Hampshire Springfield NH Pemigewasset - New Hampshire Sterling MA Nashua - Massachusetts, New Hampshire Stoddard NH Contoocook - New Hampshire Stow MA Concord - Massachusetts Strafford NH Merrimack - Massachusetts, New Hampshire Sudbury MA Concord - Massachusetts Sutton NH Contoocook - New Hampshire Tamworth NH Winnipesauke - New Hampshire Temple NH Contoocook - New Hampshire Temple NH Merrimack - Massachusetts, New Hampshire Tewksbury MA Concord - Massachusetts Tewksbury MA Merrimack - Massachusetts, New Hampshire Thornton NH Pemigewasset - New Hampshire Tilton NH Winnipesauke - New Hampshire Townsend MA Nashua - Massachusetts, New Hampshire Tuftonboro NH Winnipesauke - New Hampshire Tyngsborough MA Merrimack - Massachusetts, New Hampshire Upton MA Concord - Massachusetts Warner NH Contoocook - New Hampshire Warren NH Pemigewasset - New Hampshire Washington NH Contoocook - New Hampshire Waterville Valley NH Pemigewasset - New Hampshire Wayland MA Concord - Massachusetts Weare NH Contoocook - New Hampshire Weare NH Merrimack - Massachusetts, New Hampshire Webster NH Contoocook - New Hampshire Wentworth NH Pemigewasset - New Hampshire West Boylston MA Nashua - Massachusetts, New Hampshire West Newbury MA Merrimack - Massachusetts, New Hampshire Westborough MA Concord - Massachusetts Westford MA Concord - Massachusetts Westford MA Merrimack - Massachusetts, New Hampshire Westminster MA Nashua - Massachusetts, New Hampshire Weston MA Concord - Massachusetts Wilmington MA Merrimack - Massachusetts, New Hampshire Wilmot NH Contoocook - New Hampshire Wilmot NH Pemigewasset - New Hampshire Wilton NH Merrimack - Massachusetts, New Hampshire Wilton NH Nashua - Massachusetts, New Hampshire Windham NH Merrimack - Massachusetts, New Hampshire Windsor NH Contoocook - New Hampshire Woburn MA Merrimack - Massachusetts, New Hampshire Wolfeboro NH Winnipesauke - New Hampshire Woodstock NH Pemigewasset - New Hampshire Worcester MA Nashua - Massachusetts, New Hampshire Town State HUC 10 Name Acton MA Concord River Alexandria NH Newfound River Alexandria NH Smith River Allenstown NH Suncook River Allenstown NH Cohas Brook Allenstown NH Manchester Tributaries Alton NH Lake Winnipesaukee Drainage Alton NH Upper Suncook River Amesbury MA Merrimack River-Shawsheen River to mouth Amherst NH Litchfield-Hudson Tributaries Amherst NH Souhegan River Andover NH Lower Pemigewasset River Andover NH Upper Merrimack River Andover NH Blackwater River Andover NH Smith River Andover MA Shawsheen River Andover MA Merrimack River-Nashua River to Shawsheen River Antrim NH North Branch Antrim NH Upper Contoocook River Ashburnham MA Squannacook River Ashburnham MA Souhegan River Ashburnham MA North Nashua River Ashby MA Squannacook River Ashby MA Souhegan River Ashby MA North Nashua River Ashland NH Squam River Ashland NH Lake Winnipesaukee Drainage Ashland NH Middle Pemigewasset River Ashland MA Sudbury River Atkinson NH Merrimack River-Shawsheen River to mouth Atkinson NH Spickett River Auburn NH Merrimack River-Nashua River to Shawsheen River Auburn NH Cohas Brook Ayer MA Squannacook River Ayer MA Nashua River-headwaters to Squannacook River Ayer MA Merrimack River-Nashua River to Shawsheen River Ayer MA Nashua River-Squannacook River to mouth Barnstead NH Suncook River Barnstead NH Upper Suncook River Bedford NH Piscataquog River Bedford NH Souhegan River Bedford NH Manchester Tributaries Bedford MA Shawsheen River Bedford MA Concord River Belmont NH Soucook River Belmont NH Winnipesaukee River Bennington NH Piscataquog River Bennington NH Upper Contoocook River Benton NH Baker River Berlin MA Nashua River-headwaters to Squannacook River Berlin MA Concord River Bethlehem NH East Branch Pemigewasset River Billerica MA Shawsheen River Billerica MA Concord River Bolton MA Nashua River-headwaters to Squannacook River Bolton MA Concord River Boscawen NH Concord Tributaries Boscawen NH Upper Merrimack River Boscawen NH Lower Contoocook River Bow NH Concord Tributaries Bow NH Manchester Tributaries Boxborough MA Merrimack River-Nashua River to Shawsheen River Boxborough MA Concord River Boxford MA Merrimack River-Shawsheen River to mouth Boylston MA Nashua River-headwaters to Squannacook River Boylston MA Concord River Bradford NH Warner River Bradford NH North Branch Bradford NH Lower Contoocook River Bridgewater NH Squam River Bridgewater NH Lower Pemigewasset River Bridgewater NH Newfound River Bridgewater NH Middle Pemigewasset River Bristol NH Lower Pemigewasset River Bristol NH Newfound River Bristol NH Smith River Brookfield NH Lake Winnipesaukee Drainage Brookline NH Souhegan River Brookline NH Nashua River-Squannacook River to mouth Burlington MA Shawsheen River Campton NH Squam River Campton NH Baker River Campton NH Upper Pemigewasset River Campton NH Middle Pemigewasset River Canaan NH Baker River Candia NH Suncook River Candia NH Cohas Brook Canterbury NH Concord Tributaries Canterbury NH Soucook River Canterbury NH Upper Merrimack River Carlisle MA Concord River Center Harbor NH Squam River Center Harbor NH Lake Winnipesaukee Drainage Chelmsford MA Merrimack River-Nashua River to Shawsheen River Chelmsford MA Concord River Chester NH Merrimack River-Nashua River to Shawsheen River Chester NH Cohas Brook Chester NH Spickett River Chichester NH Suncook River Chichester NH Soucook River Clinton MA Nashua River-headwaters to Squannacook River Clinton MA Concord River Concord NH Concord Tributaries Concord NH Soucook River Concord NH Upper Merrimack River Concord NH Lower Contoocook River Concord MA Shawsheen River Concord MA Concord River Concord MA Sudbury River Danbury NH Newfound River Danbury NH Blackwater River Danbury NH Smith River Danville NH Merrimack River-Shawsheen River to mouth Deerfield NH Suncook River Deering NH Piscataquog River Deering NH Lower Contoocook River Deering NH Upper Contoocook River Derry NH Merrimack River-Nashua River to Shawsheen River Derry NH Cohas Brook Derry NH Spickett River Dorchester NH Baker River Dorchester NH Newfound River Dracut MA Merrimack River-Nashua River to Shawsheen River Dracut MA Spickett River Dublin NH Upper Contoocook River Dunbarton NH Concord Tributaries Dunbarton NH Piscataquog River Dunbarton NH Lower Contoocook River Dunbarton NH Manchester Tributaries Dunstable MA Merrimack River-Nashua River to Shawsheen River Dunstable MA Nashua River-Squannacook River to mouth East Kingston NH Merrimack River-Shawsheen River to mouth Ellsworth NH Baker River Ellsworth NH Upper Pemigewasset River Epsom NH Suncook River Farmington NH Upper Suncook River Fitchburg MA Squannacook River Fitchburg MA North Nashua River Framingham MA Sudbury River Francestown NH Piscataquog River Francestown NH Upper Contoocook River Franconia NH East Branch Pemigewasset River Franconia NH Upper Pemigewasset River Franklin NH Lower Pemigewasset River Franklin NH Upper Merrimack River Franklin NH Winnipesaukee River Gardner MA North Nashua River Georgetown MA Merrimack River-Shawsheen River to mouth Gilford NH Lake Winnipesaukee Drainage Gilford NH Upper Suncook River Gilford NH Winnipesaukee River Gilmanton NH Lake Winnipesaukee Drainage Gilmanton NH Suncook River Gilmanton NH Soucook River Gilmanton NH Upper Suncook River Gilmanton NH Winnipesaukee River Goffstown NH Piscataquog River Goffstown NH Souhegan River Goffstown NH Manchester Tributaries Goshen NH Warner River Goshen NH North Branch Grafton NH Smith River Grafton MA Concord River Greenfield NH Piscataquog River Greenfield NH Souhegan River Greenfield NH Upper Contoocook River Greenville NH Squannacook River Greenville NH Souhegan River Groton NH Baker River Groton NH Newfound River Groton MA Squannacook River Groton MA Nashua River-headwaters to Squannacook River Groton MA Merrimack River-Nashua River to Shawsheen River Groton MA Nashua River-Squannacook River to mouth Groveland MA Merrimack River-Shawsheen River to mouth Hampstead NH Merrimack River-Shawsheen River to mouth Hampstead NH Spickett River Hancock NH Upper Contoocook River Harrisville NH Upper Contoocook River Hart's Location NH East Branch Pemigewasset River Harvard MA Nashua River-headwaters to Squannacook River Harvard MA Merrimack River-Nashua River to Shawsheen River Harvard MA Concord River Haverhill MA Merrimack River-Shawsheen River to mouth Haverhill MA Spickett River Hebron NH Newfound River Henniker NH Piscataquog River Henniker NH Lower Contoocook River Hill NH Lower Pemigewasset River Hill NH Blackwater River Hill NH Smith River Hillsborough NH North Branch Hillsborough NH Lower Contoocook River Hillsborough NH Upper Contoocook River Holden MA Nashua River-headwaters to Squannacook River Holderness NH Squam River Holderness NH Lake Winnipesaukee Drainage Holderness NH Middle Pemigewasset River Hollis NH Litchfield-Hudson Tributaries Hollis NH Nashua River-Squannacook River to mouth Holliston MA Sudbury River Hooksett NH Suncook River Hooksett NH Cohas Brook Hooksett NH Manchester Tributaries Hopkinton NH Concord Tributaries Hopkinton NH Piscataquog River Hopkinton NH Warner River Hopkinton NH Blackwater River Hopkinton NH Lower Contoocook River Hopkinton MA Sudbury River Hubbardston MA Nashua River-headwaters to Squannacook River Hudson NH Litchfield-Hudson Tributaries Hudson NH Merrimack River-Nashua River to Shawsheen River Hudson NH Nashua River-Squannacook River to mouth Hudson MA Concord River Hudson MA Sudbury River Jaffrey NH Upper Contoocook River Kensington NH Merrimack River-Shawsheen River to mouth Kingston NH Merrimack River-Shawsheen River to mouth Laconia NH Lake Winnipesaukee Drainage Laconia NH Winnipesaukee River Lancaster MA Nashua River-headwaters to Squannacook River Lancaster MA North Nashua River Lawrence MA Shawsheen River Lawrence MA Merrimack River-Nashua River to Shawsheen River Lawrence MA Merrimack River-Shawsheen River to mouth Lawrence MA Spickett River Leominster MA Nashua River-headwaters to Squannacook River Leominster MA North Nashua River Lexington MA Shawsheen River Lincoln NH East Branch Pemigewasset River Lincoln NH Upper Pemigewasset River Lincoln NH Middle Pemigewasset River Lincoln MA Shawsheen River Lincoln MA Concord River Lincoln MA Sudbury River Litchfield NH Litchfield-Hudson Tributaries Litchfield NH Manchester Tributaries Littleton MA Merrimack River-Nashua River to Shawsheen River Littleton MA Concord River Livermore NH East Branch Pemigewasset River Livermore NH Upper Pemigewasset River Livermore NH Middle Pemigewasset River Londonderry NH Litchfield-Hudson Tributaries Londonderry NH Merrimack River-Nashua River to Shawsheen River Londonderry NH Cohas Brook Londonderry NH Manchester Tributaries Loudon NH Suncook River Loudon NH Concord Tributaries Loudon NH Soucook River Lowell MA Merrimack River-Nashua River to Shawsheen River Lowell MA Concord River Lunenburg MA Squannacook River Lunenburg MA Nashua River-headwaters to Squannacook River Lunenburg MA North Nashua River Lyme NH Baker River Lyndeborough NH Piscataquog River Lyndeborough NH Souhegan River Manchester NH Piscataquog River Manchester NH Cohas Brook Manchester NH Manchester Tributaries Marlborough MA Concord River Marlborough MA Sudbury River Mason NH Squannacook River Mason NH Souhegan River Mason NH Nashua River-Squannacook River to mouth Maynard MA Concord River Meredith NH Squam River Meredith NH Lake Winnipesaukee Drainage Meredith NH Lower Pemigewasset River Meredith NH Winnipesaukee River Merrimac MA Merrimack River-Shawsheen River to mouth Merrimack NH Litchfield-Hudson Tributaries Merrimack NH Souhegan River Merrimack NH Manchester Tributaries Methuen MA Merrimack River-Nashua River to Shawsheen River Methuen MA Merrimack River-Shawsheen River to mouth Methuen MA Spickett River Middleton NH Lake Winnipesaukee Drainage Milford NH Litchfield-Hudson Tributaries Milford NH Souhegan River Milford NH Nashua River-Squannacook River to mouth Mont Vernon NH Piscataquog River Mont Vernon NH Souhegan River Moultonborough NH Squam River Moultonborough NH Lake Winnipesaukee Drainage Nashua NH Litchfield-Hudson Tributaries Nashua NH Merrimack River-Nashua River to Shawsheen River Nashua NH Nashua River-Squannacook River to mouth Natick MA Sudbury River Nelson NH North Branch Nelson NH Upper Contoocook River New Boston NH Piscataquog River New Boston NH Souhegan River New Durham NH Lake Winnipesaukee Drainage New Durham NH Upper Suncook River New Hampton NH Squam River New Hampton NH Lake Winnipesaukee Drainage New Hampton NH Lower Pemigewasset River New Hampton NH Middle Pemigewasset River New Hampton NH Winnipesaukee River New Hampton NH Smith River New Ipswich NH Squannacook River New Ipswich NH Souhegan River New Ipswich NH Upper Contoocook River New London NH Warner River New London NH Blackwater River Newbury NH Warner River Newbury MA Merrimack River-Shawsheen River to mouth Newburyport MA Merrimack River-Shawsheen River to mouth Newton NH Merrimack River-Shawsheen River to mouth North Andover MA Shawsheen River North Andover MA Merrimack River-Shawsheen River to mouth North Reading MA Shawsheen River Northborough MA Concord River Northborough MA Sudbury River Northfield NH Soucook River Northfield NH Upper Merrimack River Northfield NH Winnipesaukee River Northwood NH Suncook River Orange NH Baker River Orange NH Newfound River Orange NH Smith River Orford NH Baker River Ossipee NH Lake Winnipesaukee Drainage Paxton MA Nashua River-headwaters to Squannacook River Pelham NH Merrimack River-Nashua River to Shawsheen River Pelham NH Spickett River Pembroke NH Suncook River Pembroke NH Concord Tributaries Pembroke NH Soucook River Pembroke NH Manchester Tributaries Pepperell MA Squannacook River Pepperell MA Nashua River-Squannacook River to mouth Peterborough NH Souhegan River Peterborough NH Upper Contoocook River Piermont NH Baker River Pittsfield NH Suncook River Plaistow NH Merrimack River-Shawsheen River to mouth Plymouth NH Baker River Plymouth NH Newfound River Plymouth NH Middle Pemigewasset River Princeton MA Nashua River-headwaters to Squannacook River Princeton MA North Nashua River Rindge NH Upper Contoocook River Rumney NH Baker River Rumney NH Upper Pemigewasset River Rumney NH Middle Pemigewasset River Rutland MA Nashua River-headwaters to Squannacook River Salem NH Merrimack River-Nashua River to Shawsheen River Salem NH Merrimack River-Shawsheen River to mouth Salem NH Spickett River Salisbury NH Lower Pemigewasset River Salisbury NH Upper Merrimack River Salisbury NH Warner River Salisbury NH Blackwater River Salisbury NH Lower Contoocook River Salisbury MA Merrimack River-Shawsheen River to mouth Sanbornton NH Lower Pemigewasset River Sanbornton NH Winnipesaukee River Sandown NH Merrimack River-Shawsheen River to mouth Sandown NH Spickett River Sandwich NH Squam River Sandwich NH Lake Winnipesaukee Drainage Sandwich NH Middle Pemigewasset River Seabrook NH Merrimack River-Shawsheen River to mouth Sharon NH Souhegan River Sharon NH Upper Contoocook River Sherborn MA Sudbury River Shirley MA Squannacook River Shirley MA Nashua River-headwaters to Squannacook River Shrewsbury MA Concord River South Hampton NH Merrimack River-Shawsheen River to mouth Southborough MA Sudbury River Springfield NH Blackwater River Springfield NH Smith River Sterling MA Nashua River-headwaters to Squannacook River Sterling MA North Nashua River Stoddard NH North Branch Stow MA Concord River Stow MA Sudbury River Strafford NH Suncook River Strafford NH Upper Suncook River Sudbury MA Concord River Sudbury MA Sudbury River Sutton NH Warner River Sutton NH Blackwater River Tamworth NH Lake Winnipesaukee Drainage Temple NH Souhegan River Temple NH Upper Contoocook River Tewksbury MA Shawsheen River Tewksbury MA Merrimack River-Nashua River to Shawsheen River Tewksbury MA Concord River Thornton NH Upper Pemigewasset River Thornton NH Middle Pemigewasset River Tilton NH Winnipesaukee River Townsend MA Squannacook River Townsend MA Nashua River-headwaters to Squannacook River Townsend MA Nashua River-Squannacook River to mouth Tuftonboro NH Lake Winnipesaukee Drainage Tyngsborough MA Merrimack River-Nashua River to Shawsheen River Upton MA Sudbury River Warner NH Warner River Warner NH Blackwater River Warner NH Lower Contoocook River Warren NH Baker River Warren NH Upper Pemigewasset River Washington NH Warner River Washington NH North Branch Waterville Valley NH Upper Pemigewasset River Waterville Valley NH Middle Pemigewasset River Wayland MA Sudbury River Weare NH Piscataquog River Weare NH Lower Contoocook River Webster NH Warner River Webster NH Blackwater River Webster NH Lower Contoocook River Wentworth NH Baker River West Boylston MA Nashua River-headwaters to Squannacook River West Newbury MA Merrimack River-Shawsheen River to mouth Westborough MA Concord River Westborough MA Sudbury River Westford MA Merrimack River-Nashua River to Shawsheen River Westford MA Concord River Westminster MA Nashua River-headwaters to Squannacook River Westminster MA North Nashua River Weston MA Sudbury River Wilmington MA Shawsheen River Wilmot NH Blackwater River Wilmot NH Smith River Wilton NH Souhegan River Wilton NH Nashua River-Squannacook River to mouth Windham NH Merrimack River-Nashua River to Shawsheen River Windham NH Spickett River Windsor NH North Branch Woburn MA Shawsheen River Wolfeboro NH Lake Winnipesaukee Drainage Woodstock NH Baker River Woodstock NH East Branch Pemigewasset River Woodstock NH Upper Pemigewasset River Worcester MA Nashua River-headwaters to Squannacook River Town State HUC 12 Name Acton MA Fort Pond Brook Acton MA Assabet River-Elizabeth Brook to mouth Alexandria NH Smith River Upper Alexandria NH Sanborn Bay to Newfound R. Alexandria NH Cockermouth River Alexandria NH Hornet Cove Alexandria NH Smith River Lower Allenstown NH North Manchester Tributaries Allenstown NH Lower Suncook River Allenstown NH Sucker Brook Alton NH Suncook Lakes Alton NH The Broads Alton NH Wolfeboro Bay Alton NH Big River Alton NH Alton Bay Amesbury MA Powwow River Amesbury MA Merrimack River-East Meadow River to mouth Amherst NH Pennichuck Brook Amherst NH Baboosic Brook Amherst NH Beaver Brook Andover NH Middle Blackwater River Andover NH Upper Blackwater River Andover NH Above Franklin Falls Dam Andover NH Frazier Brook Andover NH Webster Place Tributaries Andover NH Smith River Lower Andover NH Sucker Brook-Webster Lake Andover MA Merrimack mainstem-Concord River to Shawsheen River Andover MA Shawsheen River-Fosters Pond Brook to mouth Andover MA Shawsheen River-McKee Brook to Fosters Pond Brook Antrim NH Nubanusit Brook Antrim NH Shedd Brook Antrim NH Beards Brook Antrim NH Franklin Pierce Lake Antrim NH Powder Mill Pond Antrim NH Great Brook-Antrim Tributaries Ashburnham MA Headwater Branch Tributaries Ashburnham MA Willard Brook Ashburnham MA North Nashua River-Phillips Brook to Monoosnoc Brook Ashburnham MA Whitman River Ashby MA Headwater Branch Tributaries Ashby MA Willard Brook Ashby MA North Nashua River-Phillips Brook to Monoosnoc Brook Ashland NH Squam River Ashland NH Lake Waukewan Ashland NH Squam Lake Drainage Ashland NH Plymouth/Ashland Tributaries Ashland MA Sudbury River-Stearnes Reservoir Dam to Hop Brook Ashland MA Sudbury River-Cold Spring Brook to Stearnes Reservoir Ashland MA Sudbury River-headwaters to Cold Spring Brook Atkinson NH Arlington Mill Reservoir Atkinson NH Little River Atkinson NH Merrimack River-Shawsheen River to East Meadow River Atkinson NH Lower Spickett River Auburn NH Upper Beaver Brook Auburn NH Massabesic Lake Auburn NH Cohas Brook Auburn NH Sucker Brook Ayer MA Nashua River-Catacoonamug Brook to Squannacook River Ayer MA Stony Brook Ayer MA Nashua mainstem-Squannacook River to mouth Ayer MA Salmon Brook Ayer MA Squannacook River Barnstead NH Suncook Lakes Barnstead NH Pittsfield Tributaries Barnstead NH Big River Bedford NH Lower Piscataquog River Bedford NH Baboosic Brook Bedford NH Londonderry Tributaries Bedford NH South Manchester Tributaries Bedford MA Shawsheen River-headwaters to McKee Brook Bedford MA Concord River mainstem Bedford MA Shawsheen River-McKee Brook to Fosters Pond Brook Belmont NH Tioga River Belmont NH Winnisquam Lake Belmont NH Gues Meadow Brook Belmont NH Silver Lake to the Merrimack River Bennington NH Rand Brook-South Branch Bennington NH Powder Mill Pond Bennington NH Great Brook-Antrim Tributaries Benton NH Wentworth-Warren Tributaries Benton NH Baker River Headwaters Berlin MA Assabet River-North Brook to Elizabeth Brook Berlin MA Assabet River-headwaters to North Brook Berlin MA Nashua River-headwaters to North Nashua River Bethlehem NH North Fork Billerica MA Shawsheen River-headwaters to McKee Brook Billerica MA Concord River mainstem Billerica MA Shawsheen River-McKee Brook to Fosters Pond Brook Billerica MA River Meadow Brook Bolton MA Assabet River-North Brook to Elizabeth Brook Bolton MA Assabet River-Elizabeth Brook to mouth Bolton MA Nashua River-Catacoonamug Brook to Squannacook River Bolton MA Nashua River-North Nashua River to Catacoonamug Brook Bolton MA Nashua River-headwaters to North Nashua River Boscawen NH Blackwater River Boscawen NH Webster Place Tributaries Boscawen NH Boscawen-Canterbury Tributaries Boscawen NH Merrimack River Drainage Boscawen NH Contoocook River Mouth Bow NH Turkey River Bow NH North Manchester Tributaries Bow NH Merrimack River Drainage Bow NH Black Brook Boxborough MA Fort Pond Brook Boxborough MA Assabet River-Elizabeth Brook to mouth Boxborough MA Stony Brook Boxford MA Merrimack River-Shawsheen River to East Meadow River Boylston MA Assabet River-North Brook to Elizabeth Brook Boylston MA Assabet River-headwaters to North Brook Boylston MA Nashua River-headwaters to North Nashua River Bradford NH Upper Warner River Bradford NH Andrew Brook Bradford NH Amey Brook Bradford NH Beards Brook Bradford NH Sand Brook Bridgewater NH Squam River Bridgewater NH Sanborn Bay to Newfound R. Bridgewater NH Bristol-New Hampton Tribs. Bridgewater NH Plymouth/Ashland Tributaries Bristol NH Above Franklin Falls Dam Bristol NH Sanborn Bay to Newfound R. Bristol NH Bristol-New Hampton Tribs. Bristol NH Hornet Cove Bristol NH Smith River Lower Brookfield NH Wolfeboro Bay Brookfield NH Alton Bay Brookline NH Nissitissit River Brookline NH Beaver Brook Burlington MA Shawsheen River-headwaters to McKee Brook Burlington MA Shawsheen River-McKee Brook to Fosters Pond Brook Campton NH Beebe River Campton NH Lower Baker River Campton NH Mad River Campton NH West Branch Brook Campton NH Squam Lake Drainage Campton NH Campton Tributaries Canaan NH South Branch Candia NH Lower Suncook River Candia NH Massabesic Lake Candia NH Sucker Brook Canterbury NH Gues Meadow Brook Canterbury NH Webster Place Tributaries Canterbury NH Boscawen-Canterbury Tributaries Canterbury NH Merrimack River Drainage Canterbury NH Soucook River Carlisle MA Fort Pond Brook Carlisle MA Assabet River-Elizabeth Brook to mouth Carlisle MA Concord River mainstem Carlisle MA River Meadow Brook Center Harbor NH Meredith Bay Center Harbor NH Lake Waukewan Center Harbor NH Squam Lake Drainage Center Harbor NH Center Harbor Chelmsford MA Merrimack mainstem-Nashua River to Concord River Chelmsford MA Stony Brook Chelmsford MA Concord River mainstem Chelmsford MA River Meadow Brook Chester NH Upper Beaver Brook Chester NH Cohas Brook Chester NH Arlington Mill Reservoir Chester NH Sucker Brook Chichester NH Lower Suncook River Chichester NH Soucook River Chichester NH Pittsfield Tributaries Clinton MA Assabet River-North Brook to Elizabeth Brook Clinton MA Nashua River-headwaters to North Nashua River Concord NH Turkey River Concord NH Blackwater River Concord NH Boscawen-Canterbury Tributaries Concord NH Merrimack River Drainage Concord NH Soucook River Concord NH Contoocook River Mouth Concord MA Fort Pond Brook Concord MA Sudbury River-Hop Brook to mouth Concord MA Assabet River-Elizabeth Brook to mouth Concord MA Shawsheen River-headwaters to McKee Brook Concord MA Concord River mainstem Danbury NH Smith River Upper Danbury NH Middle Blackwater River Danbury NH Frazier Brook Danbury NH Hornet Cove Danbury NH Smith River Lower Danville NH Powwow River Deerfield NH Lower Suncook River Deerfield NH Little Suncook River Deering NH Sand Brook Deering NH Middle Branch Piscataquog River Deering NH Rand Brook-South Branch Deering NH Weare Reservoir Deering NH Great Brook-Antrim Tributaries Derry NH Upper Beaver Brook Derry NH Cohas Brook Derry NH Arlington Mill Reservoir Derry NH Lower Spickett River Dorchester NH Middle Baker River Dorchester NH South Branch Dorchester NH Cockermouth River Dracut MA Merrimack mainstem-Concord River to Shawsheen River Dracut MA Merrimack mainstem-Nashua River to Concord River Dracut MA Lower Spickett River Dracut MA Lower Beaver Brook Dublin NH Nubanusit Brook Dublin NH Stanley Brook Dublin NH Town Farm Brook Dunbarton NH Turkey River Dunbarton NH Everett Lake Dunbarton NH Lower Piscataquog River Dunbarton NH Hopkington-Everett Reservoir Dunbarton NH Upper Piscataquog River Dunbarton NH Black Brook Dunstable MA Merrimack mainstem-Nashua River to Concord River Dunstable MA Nashua mainstem-Squannacook River to mouth Dunstable MA Salmon Brook East Kingston NH Powwow River Ellsworth NH Stinson Brook Ellsworth NH Hubbard Brook to Mill Brook Ellsworth NH West Branch Brook Ellsworth NH Baker River Headwaters Epsom NH Lower Suncook River Epsom NH Pittsfield Tributaries Epsom NH Little Suncook River Farmington NH Big River Fitchburg MA Willard Brook Fitchburg MA North Nashua River-Phillips Brook to Monoosnoc Brook Fitchburg MA North Nashua River-Monoosnoc Brook to mouth Fitchburg MA Whitman River Framingham MA Sudbury River-Hop Brook to mouth Framingham MA Sudbury River-Stearnes Reservoir Dam to Hop Brook Framingham MA Sudbury River-Cold Spring Brook to Stearnes Reservoir Francestown NH South Branch Piscataquog River Francestown NH Middle Branch Piscataquog River Francestown NH Rand Brook-South Branch Francestown NH Weare Reservoir Francestown NH Great Brook-Antrim Tributaries Franconia NH Upper Pemigewasset Headwaters Franconia NH Franconia Brook Franklin NH Above Franklin Falls Dam Franklin NH Webster Place Tributaries Franklin NH Silver Lake to the Merrimack River Franklin NH Sucker Brook-Webster Lake Franklin NH Salmon Brook Gardner MA Whitman River Georgetown MA Merrimack River-Shawsheen River to East Meadow River Gilford NH Suncook Lakes Gilford NH Tioga River Gilford NH Winnisquam Lake Gilford NH Meredith Bay Gilford NH The Broads Gilford NH Center Harbor Gilford NH Sanders Bay Gilford NH Paugus Bay Gilmanton NH Suncook Lakes Gilmanton NH Tioga River Gilmanton NH Gues Meadow Brook Gilmanton NH Pittsfield Tributaries Gilmanton NH Alton Bay Goffstown NH Lower Piscataquog River Goffstown NH Baboosic Brook Goffstown NH South Branch Piscataquog River Goffstown NH South Manchester Tributaries Goffstown NH Upper Piscataquog River Goffstown NH Black Brook Goshen NH Upper Warner River Goshen NH Highland Lake Grafton NH Smith River Upper Grafton NH Smith River Lower Grafton MA Assabet River-headwaters to North Brook Greenfield NH Otter Brook Greenfield NH Ferguson Brook Greenfield NH Rand Brook-South Branch Greenfield NH Powder Mill Pond Greenfield NH Stony Brook Greenfield NH Peterborough Tributaries Greenfield NH Great Brook-Antrim Tributaries Greenville NH Headwater Branch Tributaries Greenville NH Temple Brook Greenville NH Willard Brook Groton NH Lower Baker River Groton NH Middle Baker River Groton NH South Branch Groton NH Sanborn Bay to Newfound R. Groton NH Cockermouth River Groton MA Nashua River-Catacoonamug Brook to Squannacook River Groton MA Stony Brook Groton MA Nashua mainstem-Squannacook River to mouth Groton MA Salmon Brook Groton MA Squannacook River Groveland MA Merrimack River-East Meadow River to mouth Groveland MA Merrimack River-Shawsheen River to East Meadow River Hampstead NH Powwow River Hampstead NH Arlington Mill Reservoir Hampstead NH Little River Hampstead NH Lower Spickett River Hancock NH Nubanusit Brook Hancock NH Ferguson Brook Hancock NH Powder Mill Pond Hancock NH Great Brook-Antrim Tributaries Harrisville NH Nubanusit Brook Harrisville NH Stanley Brook Hart's Location NH North Fork Harvard MA Assabet River-Elizabeth Brook to mouth Harvard MA Nashua River-Catacoonamug Brook to Squannacook River Harvard MA Stony Brook Harvard MA Nashua River-North Nashua River to Catacoonamug Brook Haverhill MA Merrimack River-East Meadow River to mouth Haverhill MA Little River Haverhill MA Merrimack River-Shawsheen River to East Meadow River Haverhill MA Lower Spickett River Hebron NH Sanborn Bay to Newfound R. Hebron NH Cockermouth River Hebron NH Hornet Cove Henniker NH Hopkington Dam to the Blackwater River Henniker NH Hopkinton Lake Henniker NH Everett Lake Henniker NH Amey Brook Henniker NH Sand Brook Henniker NH Hopkington-Everett Reservoir Henniker NH Weare Reservoir Hill NH Middle Blackwater River Hill NH Above Franklin Falls Dam Hill NH Smith River Lower Hill NH Sucker Brook-Webster Lake Hillsborough NH Shedd Brook Hillsborough NH Hopkinton Lake Hillsborough NH Amey Brook Hillsborough NH Beards Brook Hillsborough NH Sand Brook Hillsborough NH Franklin Pierce Lake Hillsborough NH Great Brook-Antrim Tributaries Holden MA Quinapoxet River Holden MA Nashua River-headwaters to North Nashua River Holden MA Stillwater River Holderness NH Beebe River Holderness NH Squam River Holderness NH Lake Waukewan Holderness NH Squam Lake Drainage Holderness NH Campton Tributaries Holderness NH Plymouth/Ashland Tributaries Hollis NH Pennichuck Brook Hollis NH Nissitissit River Hollis NH Nashua mainstem-Squannacook River to mouth Holliston MA Sudbury River-Stearnes Reservoir Dam to Hop Brook Holliston MA Sudbury River-Cold Spring Brook to Stearnes Reservoir Hooksett NH North Manchester Tributaries Hooksett NH Lower Suncook River Hooksett NH Massabesic Lake Hooksett NH Black Brook Hooksett NH Sucker Brook Hopkinton NH Turkey River Hopkinton NH Lower Warner River Hopkinton NH Hopkington Dam to the Blackwater River Hopkinton NH Blackwater River Hopkinton NH Hopkinton Lake Hopkinton NH Everett Lake Hopkinton NH Amey Brook Hopkinton NH Lower Blackwater River Hopkinton NH Contoocook River Mouth Hopkinton NH Hopkington-Everett Reservoir Hopkinton MA Sudbury River-Cold Spring Brook to Stearnes Reservoir Hopkinton MA Sudbury River-headwaters to Cold Spring Brook Hubbardston MA Quinapoxet River Hudson NH Merrimack mainstem-Nashua River to Concord River Hudson NH Litchfield Tributaries Hudson NH Nashua mainstem-Squannacook River to mouth Hudson NH Salmon Brook Hudson NH Upper Beaver Brook Hudson NH Lower Beaver Brook Hudson MA Assabet River-North Brook to Elizabeth Brook Hudson MA Sudbury River-Hop Brook to mouth Jaffrey NH Stanley Brook Jaffrey NH Peterborough Tributaries Jaffrey NH Town Farm Brook Kensington NH Powwow River Kingston NH Powwow River Kingston NH Little River Laconia NH Winnisquam Lake Laconia NH Meredith Bay Laconia NH Sanders Bay Laconia NH Paugus Bay Lancaster MA Nashua River-Catacoonamug Brook to Squannacook River Lancaster MA Nashua River-North Nashua River to Catacoonamug Brook Lancaster MA Nashua River-headwaters to North Nashua River Lancaster MA North Nashua River-Monoosnoc Brook to mouth Lawrence MA Merrimack mainstem-Concord River to Shawsheen River Lawrence MA Shawsheen River-Fosters Pond Brook to mouth Lawrence MA Merrimack River-Shawsheen River to East Meadow River Lawrence MA Lower Spickett River Leominster MA North Nashua River-Phillips Brook to Monoosnoc Brook Leominster MA Nashua River-Catacoonamug Brook to Squannacook River Leominster MA North Nashua River-Monoosnoc Brook to mouth Leominster MA Stillwater River Leominster MA Whitman River Lexington MA Shawsheen River-headwaters to McKee Brook Lincoln NH North Fork Lincoln NH Upper Pemigewasset Headwaters Lincoln NH Glover Brook Lincoln NH Franconia Brook Lincoln NH Mad River Lincoln NH Eastman Brook Lincoln NH East Branch Pemigewasset Headwaters Lincoln NH Hancock Brook Lincoln NH Moosilauke Brook Lincoln MA Sudbury River-Hop Brook to mouth Lincoln MA Shawsheen River-headwaters to McKee Brook Lincoln MA Concord River mainstem Litchfield NH Londonderry Tributaries Litchfield NH Litchfield Tributaries Littleton MA Fort Pond Brook Littleton MA Stony Brook Livermore NH North Fork Livermore NH Mad River Livermore NH Eastman Brook Livermore NH East Branch Pemigewasset Headwaters Livermore NH Hancock Brook Londonderry NH Londonderry Tributaries Londonderry NH Litchfield Tributaries Londonderry NH Upper Beaver Brook Londonderry NH Cohas Brook Loudon NH Gues Meadow Brook Loudon NH Lower Suncook River Loudon NH Merrimack River Drainage Loudon NH Soucook River Loudon NH Pittsfield Tributaries Lowell MA Merrimack mainstem-Concord River to Shawsheen River Lowell MA Merrimack mainstem-Nashua River to Concord River Lowell MA Concord River mainstem Lowell MA Lower Beaver Brook Lowell MA River Meadow Brook Lunenburg MA Willard Brook Lunenburg MA North Nashua River-Phillips Brook to Monoosnoc Brook Lunenburg MA Nashua River-Catacoonamug Brook to Squannacook River Lunenburg MA Squannacook River Lyme NH South Branch Lyndeborough NH Purgatory Brook Lyndeborough NH South Branch Piscataquog River Lyndeborough NH Rand Brook-South Branch Lyndeborough NH Stony Brook Manchester NH North Manchester Tributaries Manchester NH Lower Piscataquog River Manchester NH Londonderry Tributaries Manchester NH South Manchester Tributaries Manchester NH Massabesic Lake Manchester NH Cohas Brook Manchester NH Black Brook Marlborough MA Assabet River-North Brook to Elizabeth Brook Marlborough MA Sudbury River-Hop Brook to mouth Marlborough MA Sudbury River-Stearnes Reservoir Dam to Hop Brook Marlborough MA Assabet River-headwaters to North Brook Marlborough MA Sudbury River-Cold Spring Brook to Stearnes Reservoir Mason NH Nissitissit River Mason NH Temple Brook Mason NH Willard Brook Mason NH Squannacook River Maynard MA Fort Pond Brook Maynard MA Assabet River-Elizabeth Brook to mouth Meredith NH Winnisquam Lake Meredith NH Meredith Bay Meredith NH The Broads Meredith NH Lake Waukewan Meredith NH Bristol-New Hampton Tribs. Meredith NH Squam Lake Drainage Meredith NH Center Harbor Meredith NH Sanders Bay Meredith NH Paugus Bay Meredith NH Salmon Brook Merrimac MA Powwow River Merrimac MA Merrimack River-East Meadow River to mouth Merrimack NH Pennichuck Brook Merrimack NH Baboosic Brook Merrimack NH Londonderry Tributaries Merrimack NH Litchfield Tributaries Merrimack NH Beaver Brook Methuen MA Merrimack mainstem-Concord River to Shawsheen River Methuen MA Merrimack River-Shawsheen River to East Meadow River Methuen MA Lower Spickett River Middleton NH Alton Bay Milford NH Pennichuck Brook Milford NH Nissitissit River Milford NH Purgatory Brook Milford NH Beaver Brook Mont Vernon NH Baboosic Brook Mont Vernon NH Purgatory Brook Mont Vernon NH South Branch Piscataquog River Mont Vernon NH Beaver Brook Moultonborough NH The Broads Moultonborough NH Moultonborough Inlet Moultonborough NH Squam Lake Drainage Moultonborough NH Center Harbor Moultonborough NH Moultonborough Bay Nashua NH Pennichuck Brook Nashua NH Merrimack mainstem-Nashua River to Concord River Nashua NH Litchfield Tributaries Nashua NH Nashua mainstem-Squannacook River to mouth Nashua NH Salmon Brook Natick MA Sudbury River-Stearnes Reservoir Dam to Hop Brook Nelson NH Nubanusit Brook Nelson NH Franklin Pierce Lake Nelson NH Powder Mill Pond New Boston NH Lower Piscataquog River New Boston NH Baboosic Brook New Boston NH South Branch Piscataquog River New Boston NH Middle Branch Piscataquog River New Boston NH Upper Piscataquog River New Durham NH The Broads New Durham NH Wolfeboro Bay New Durham NH Big River New Durham NH Alton Bay New Hampton NH Winnisquam Lake New Hampton NH Squam River New Hampton NH Lake Waukewan New Hampton NH Above Franklin Falls Dam New Hampton NH Bristol-New Hampton Tribs. New Hampton NH Smith River Lower New Hampton NH Plymouth/Ashland Tributaries New Ipswich NH Headwater Branch Tributaries New Ipswich NH Temple Brook New Ipswich NH Willard Brook New Ipswich NH Peterborough Tributaries New Ipswich NH Town Farm Brook New London NH Upper Blackwater River New London NH Lane River Newbury NH Upper Warner River Newbury NH Andrew Brook Newbury NH Lane River Newbury MA Merrimack River-East Meadow River to mouth Newburyport MA Merrimack River-East Meadow River to mouth Newton NH Powwow River Newton NH Merrimack River-East Meadow River to mouth Newton NH Little River North Andover MA Shawsheen River-Fosters Pond Brook to mouth North Andover MA Merrimack River-Shawsheen River to East Meadow River North Reading MA Shawsheen River-Fosters Pond Brook to mouth Northborough MA Assabet River-North Brook to Elizabeth Brook Northborough MA Assabet River-headwaters to North Brook Northborough MA Sudbury River-Cold Spring Brook to Stearnes Reservoir Northfield NH Tioga River Northfield NH Gues Meadow Brook Northfield NH Webster Place Tributaries Northfield NH Boscawen-Canterbury Tributaries Northfield NH Silver Lake to the Merrimack River Northfield NH Soucook River Northwood NH Pittsfield Tributaries Northwood NH Little Suncook River Orange NH Smith River Upper Orange NH South Branch Orange NH Cockermouth River Orange NH Hornet Cove Orford NH Pond Brook/ Tural Brook Ossipee NH Wolfeboro Bay Ossipee NH Moultonborough Bay Paxton MA Quinapoxet River Pelham NH Merrimack mainstem-Concord River to Shawsheen River Pelham NH Merrimack mainstem-Nashua River to Concord River Pelham NH Upper Beaver Brook Pelham NH Golden Brook Pelham NH Lower Spickett River Pelham NH Lower Beaver Brook Pembroke NH North Manchester Tributaries Pembroke NH Lower Suncook River Pembroke NH Merrimack River Drainage Pembroke NH Soucook River Pepperell MA Nissitissit River Pepperell MA Nashua mainstem-Squannacook River to mouth Pepperell MA Squannacook River Peterborough NH Nubanusit Brook Peterborough NH Stanley Brook Peterborough NH Otter Brook Peterborough NH Temple Brook Peterborough NH Ferguson Brook Peterborough NH Stony Brook Peterborough NH Peterborough Tributaries Peterborough NH Town Farm Brook Piermont NH Pond Brook/ Tural Brook Pittsfield NH Pittsfield Tributaries Pittsfield NH Little Suncook River Plaistow NH Powwow River Plaistow NH Merrimack River-East Meadow River to mouth Plaistow NH Little River Plymouth NH Lower Baker River Plymouth NH Sanborn Bay to Newfound R. Plymouth NH Campton Tributaries Plymouth NH Plymouth/Ashland Tributaries Princeton MA Quinapoxet River Princeton MA North Nashua River-Monoosnoc Brook to mouth Princeton MA Stillwater River Princeton MA Whitman River Rindge NH Peterborough Tributaries Rindge NH Town Farm Brook Rumney NH Lower Baker River Rumney NH Stinson Brook Rumney NH Middle Baker River Rumney NH West Branch Brook Rumney NH South Branch Rumney NH Campton Tributaries Rutland MA Quinapoxet River Salem NH Golden Brook Salem NH Arlington Mill Reservoir Salem NH Merrimack River-Shawsheen River to East Meadow River Salem NH Lower Spickett River Salisbury NH Lower Warner River Salisbury NH Middle Blackwater River Salisbury NH Blackwater River Salisbury NH Webster Place Tributaries Salisbury NH Boscawen-Canterbury Tributaries Salisbury NH Lower Blackwater River Salisbury NH Sucker Brook-Webster Lake Salisbury MA Powwow River Salisbury MA Merrimack River-East Meadow River to mouth Sanbornton NH Winnisquam Lake Sanbornton NH Above Franklin Falls Dam Sanbornton NH Bristol-New Hampton Tribs. Sanbornton NH Silver Lake to the Merrimack River Sanbornton NH Sucker Brook-Webster Lake Sanbornton NH Salmon Brook Sandown NH Powwow River Sandown NH Arlington Mill Reservoir Sandwich NH Beebe River Sandwich NH Moultonborough Inlet Sandwich NH Mad River Sandwich NH Squam Lake Drainage Seabrook NH Powwow River Sharon NH Temple Brook Sharon NH Peterborough Tributaries Sharon NH Town Farm Brook Sherborn MA Sudbury River-Stearnes Reservoir Dam to Hop Brook Shirley MA Nashua River-Catacoonamug Brook to Squannacook River Shirley MA Nashua River-North Nashua River to Catacoonamug Brook Shirley MA Squannacook River Shrewsbury MA Assabet River-headwaters to North Brook South Hampton NH Powwow River Southborough MA Sudbury River-Cold Spring Brook to Stearnes Reservoir Southborough MA Sudbury River-headwaters to Cold Spring Brook Springfield NH Smith River Upper Springfield NH Upper Blackwater River Springfield NH Frazier Brook Sterling MA Quinapoxet River Sterling MA Nashua River-headwaters to North Nashua River Sterling MA North Nashua River-Monoosnoc Brook to mouth Sterling MA Stillwater River Stoddard NH Shedd Brook Stoddard NH Highland Lake Stoddard NH Franklin Pierce Lake Stow MA Fort Pond Brook Stow MA Assabet River-North Brook to Elizabeth Brook Stow MA Sudbury River-Hop Brook to mouth Stow MA Assabet River-Elizabeth Brook to mouth Strafford NH Pittsfield Tributaries Strafford NH Big River Strafford NH Little Suncook River Sudbury MA Sudbury River-Hop Brook to mouth Sudbury MA Sudbury River-Stearnes Reservoir Dam to Hop Brook Sudbury MA Assabet River-Elizabeth Brook to mouth Sutton NH Upper Warner River Sutton NH Lower Warner River Sutton NH Upper Blackwater River Sutton NH Andrew Brook Sutton NH Lane River Tamworth NH Moultonborough Inlet Temple NH Temple Brook Temple NH Stony Brook Temple NH Peterborough Tributaries Tewksbury MA Merrimack mainstem-Concord River to Shawsheen River Tewksbury MA Concord River mainstem Tewksbury MA Shawsheen River-McKee Brook to Fosters Pond Brook Thornton NH Glover Brook Thornton NH Hubbard Brook to Mill Brook Thornton NH Mad River Thornton NH West Branch Brook Thornton NH Eastman Brook Tilton NH Winnisquam Lake Tilton NH Silver Lake to the Merrimack River Townsend MA Nissitissit River Townsend MA Willard Brook Townsend MA Nashua River-Catacoonamug Brook to Squannacook River Townsend MA Squannacook River Tuftonboro NH The Broads Tuftonboro NH Moultonborough Bay Tyngsborough MA Merrimack mainstem-Nashua River to Concord River Tyngsborough MA Stony Brook Tyngsborough MA Salmon Brook Tyngsborough MA Lower Beaver Brook Upton MA Sudbury River-headwaters to Cold Spring Brook Warner NH Upper Warner River Warner NH Lower Warner River Warner NH Hopkington Dam to the Blackwater River Warner NH Middle Blackwater River Warner NH Upper Blackwater River Warner NH Amey Brook Warner NH Lane River Warren NH Wentworth-Warren Tributaries Warren NH Pond Brook/ Tural Brook Warren NH Stinson Brook Warren NH Hubbard Brook to Mill Brook Warren NH West Branch Brook Warren NH Moosilauke Brook Warren NH Baker River Headwaters Washington NH Upper Warner River Washington NH Shedd Brook Washington NH Highland Lake Washington NH Beards Brook Waterville Valley NH Hubbard Brook to Mill Brook Waterville Valley NH Mad River Waterville Valley NH Eastman Brook Wayland MA Sudbury River-Hop Brook to mouth Wayland MA Sudbury River-Stearnes Reservoir Dam to Hop Brook Weare NH Hopkinton Lake Weare NH Everett Lake Weare NH Middle Branch Piscataquog River Weare NH Hopkington-Everett Reservoir Weare NH Upper Piscataquog River Weare NH Weare Reservoir Webster NH Lower Warner River Webster NH Blackwater River Webster NH Lower Blackwater River Wentworth NH Wentworth-Warren Tributaries Wentworth NH Pond Brook/ Tural Brook Wentworth NH Stinson Brook Wentworth NH Middle Baker River Wentworth NH South Branch West Boylston MA Quinapoxet River West Boylston MA Nashua River-headwaters to North Nashua River West Boylston MA Stillwater River West Newbury MA Merrimack River-East Meadow River to mouth Westborough MA Assabet River-headwaters to North Brook Westborough MA Sudbury River-Cold Spring Brook to Stearnes Reservoir Westborough MA Sudbury River-headwaters to Cold Spring Brook Westford MA Fort Pond Brook Westford MA Merrimack mainstem-Nashua River to Concord River Westford MA Stony Brook Westford MA Salmon Brook Westford MA River Meadow Brook Westminster MA North Nashua River-Phillips Brook to Monoosnoc Brook Westminster MA North Nashua River-Monoosnoc Brook to mouth Westminster MA Stillwater River Westminster MA Whitman River Weston MA Sudbury River-Hop Brook to mouth Weston MA Sudbury River-Stearnes Reservoir Dam to Hop Brook Wilmington MA Shawsheen River-Fosters Pond Brook to mouth Wilmington MA Shawsheen River-McKee Brook to Fosters Pond Brook Wilmot NH Smith River Upper Wilmot NH Middle Blackwater River Wilmot NH Upper Blackwater River Wilmot NH Frazier Brook Wilton NH Nissitissit River Wilton NH Temple Brook Wilton NH Purgatory Brook Wilton NH Stony Brook Wilton NH Beaver Brook Windham NH Upper Beaver Brook Windham NH Golden Brook Windham NH Arlington Mill Reservoir Windham NH Lower Spickett River Windsor NH Shedd Brook Windsor NH Franklin Pierce Lake Woburn MA Shawsheen River-headwaters to McKee Brook Wolfeboro NH The Broads Wolfeboro NH Wolfeboro Bay Wolfeboro NH Moultonborough Bay Woodstock NH Upper Pemigewasset Headwaters Woodstock NH Glover Brook Woodstock NH Hubbard Brook to Mill Brook Woodstock NH Eastman Brook Woodstock NH Hancock Brook Woodstock NH Moosilauke Brook Woodstock NH Baker River Headwaters Worcester MA Quinapoxet River Worcester MA Nashua River-headwaters to North Nashua River