ST76 New Albin Riceford Creek Otter Creek Chester Upper Iowa River North Bear Creek Rake Cedar River-Otter Creek Waterloo Creek Shell Rock River Upper Iowa River Coon Creek Scarville Staff Creek Bigalks Creek Lime Springs 139 ST26 Winnebago River-Pike Run Northwood ST Bear Creek-Waterloo Creek Blue Earth Drainage Ditch 2 ST105 Little Cedar River-Stacyville McIntire Mississippi River Blue Earth River-Lateral 2 Stacyville Lower Deer Creek-Cedar River Lake Mills Elk Creek-Shell Rock River Silver Creek-Minor Creek Pike Run Carpenter Turtle Creek Upper Iowa River-Patterson Creek 227 North Branch Turkey River Buffalo Center 9 ST Upper Iowa ST French Creek NE Iowa Watershed WORTH St. Ansgar Canoe Creek WINNEBAGO Thompson Cresco Lansing Joice Little Cedar River-Burr Oak Riceville Kensett MITCHELL HOWARD Patterson Creek Winnebago River-Buffalo Creek Winans Creek 9 Tenmile Creek Grafton Cedar River-Sugar Creek ST Leland Shell Rock River-Rose Creek Lower Village Creek Mitchell Upper Village Creek 69 Decorah East Fork Des Moines ST Ridgeway ALLAMAKEE Mississippi River Rock Creek-Goose Creek Turkey River-Otter Creek Buffalo Creek-Drainage Ditch 39 Manly Waukon Hanlontown Osage Dry Run-Upper Iowa River and Karst Map WINNESHIEK Forest City Fertile ST9-76 52 Trout River 218 272 ST Plymouth ST Elma ST Upper Paint Creek Winnebago Norfolk Creek Rock Creek-Upper Cedar River Little Cedar River-Uphams Slough Woden Winnebago River-Beaver Creek Crystal Lake Orchard Bohemian Creek Mississippi River Waterville Protivin 325 Coon-Yellow Harpers Ferry Rock Falls Spillville ST 111 Lower Paint Creek Iowa Geological and Water Survey ST Calmus Creek Alta Vista Wonder Creek Calmar Upper Yellow River Upper Flood Creek ST364 Open File Map OFM-10-7 Cedar River-Skunk Creek 51 Colwell Yellow River Headwaters ST Upper East Branch Iowa River Willow Creek-Cheslea Creek Ossian Nora Springs Upper Cedar Upper Little Turkey River Fort Atkinson Middle Yellow River Mason City November 2010 Ventura Clear Lake Rogers Creek 18 Clear Creek-Willow Creek Shell Rock Rudd ST Floyd Lower Yellow River Castalia 76 Cedar River-Stewart Creek North Washington ST Jackson Junction Britt Garner Nutting Creek Hickory Creek-Yellow River Wesley 1ST8-218 Postville prepared by CERRO GORDO CHICKASAW Lawler HANCOCK ST18 ST24 St. Lucas Luana Charles City Bassett New Hampton Waucoma Dibble Creek Monona FLOYD 147 Marquette Galls Creek Rockford Bloody Run-Mississippi River Upper Beaverdam Creek ST Silver Creek-Roberts Creek Gizzard Creek Ionia McGregor Middle East Branch Iowa River 65 Beaver Creek-Little Beaver Creek 193 ST150 Claire E. Hruby ST35 ST ST 18 Claire E. Hruby, Calvin F. Wolter, Robert M. McKay and Michael J. Bounk 63-18 Lower Little Turkey River 52-18 ST 340 Klemme ST ST ST Crane Creek-Dry Run Clermont 14 Corwith ST Middle East Branch Wapsipinicon River 107 Turkey River-Bell Creek ST Beemis Creek Howard Creek Swaledale Rockwell Middle Flood Creek Sny Magill Creek Iowa Geological and Water Survey, Iowa City, Iowa 346 Fredericksburg ST18 Farmersburg Upper Bailey Creek Marble Rock ST West Union Elgin Lower East Branch Iowa River Otter Creek-Glovers Creek Ackley Creek Nashua Turkey River-Beaver Creek Thornton Turkey Hawkeye Kanawha St. Olaf Lower Beaverdam Creek Goodell Dougherty Meservey Clayton Lower Bailey Creek Lower Flood Creek Cedar River-Dry Run Frog Hollow ST56 Greene Dry Mill Creek Sheffield Lower Coldwater Creek Horton Creek Mink Creek-Volga River Frederika Turkey River-French Hollow Garnavillo FAYETTE Randalia Elkader Otter Creek-Drainage Ditch 55 Boylan Creek Fayette CLAYTON Belmond Luicks Creek ST93 Sumner Upper Eagle Creek 188 Plainfield Volga River-Frog Hollow Wadena Parmentar Creek Palmer Creek ST Renwick Aredale 63 South Cedar Creek ST 52 West Fork Cedar Turkey River-Panther Creek ST ST17 Buffalo Creek-Otter Creek Shell Rock River-Beaver Creek Tripoli Volga River-Brush Creek Iowa River-Luicks Creek Alexander Guttenberg Otter Creek-Boone River Otter Creek-Buffalo Creek Dry Creek-Shell Rock River Brush Creek-Volga River Iowa Department of Natural Resources, Patricia Boddy, Interim Director Clarksville Maynard Little Volga River Littleport Little Eagle Creek Spring Creek-Hartgrave Creek Bristow BREMER Westgate Kilson Creek Hewett Creek Volga River-Cox Creek Iowa Geological and Water Survey, Robert D. Libra, State Geologist Hansell 187 Latimer Hartgrave Creek Dumont Allison Baskins Run ST Arlington Garber Osterdock ST3 Hampton 3 Turkey River-Carlan Creek Goldfield Rowan Squaw Creek-Hartgrave Creek Feddeke Creek ST ST3-17 ST3 Clarion FRANKLIN Coulter BUTLER Cox Creek Shell Rock Waverly WRIGHT Boone 3 Millville Shell Rock River-Curry Creek ST Maquoketa River-Bruce Creek McClure Creek Readlyn 3-150 Drainage Ditch 32 Lower Maynes Creek ST North Buena Vista Galt Upper Maynes Creek Strawberry Point Bear Creek-Volga River Middle Maynes Creek Upper Wapsipinicon Geneva West Fork Cedar River-Maynes Creek 3 Eagle Grove Upper White Fox Creek Wheeler Creek Denver Oelwein ST Mississippi River-Grant River Lower Eagle Creek Dows Maquoketa River-Fenchel Creek ST14 ST313 Edgewood Colesburg Balltown 69 Iowa River-Drainage Ditch 7 Drainage Ditch 6 Janesville Stanley 410 ST Johnson Creek Fairbank ST Little Turkey River-Turkey River Upper Elk Creek-Turkey River West Fork Cedar River-McClure Creek Aurora South Fork Maquoketa River North Beaver Creek Hazleton Sherrill Luxemburg Holy Cross North Fork Little Maquoketa River Iowa River-Drainage Ditch 2 Lamont Lower White Fox Creek Rickardsville Sheldon Creek Popejoy Beaver Creek-Drainage Ditch 13 Greeley Dundee Sageville Beaver Creek-Gran Creek Middle Fork Little Maquoketa River Durango Elk Run-Iowa River Parkersburg Woolstock ST57 New Hartford Dunkerton Sageville 20 150 New Vienna Grant-Little Maquoketa ST Beaver Creek-Hammers Creek 281 ST Ackley ST 924 ST20-65 ST South Fork Iowa River Headwaters Elk Run-Cedar River Asbury Stout Hewitt Creek Bankston 61-151 Lateral 1 Iowa River-Elk Run Dubuque ST 928 20 Iowa Falls Cedar Falls 17 ST ST Alden Middle Fork South Beaver Creek ST86 Coffins Creek Upper Little Maquoketa River ST Lyons Creek 218 Iowa River-School Creek ST Spring Branch Waterloo BUCHANAN Manchester Earlville Dyersville South Fork Catfish Creek Williams Upper North Black Hawk Creek Centralia Masonville Delaware 968 Blairsburg Upper South Fork Iowa River ST218 Jesup Wapsipinicon River-Malone Creek Winthrop 136 ST Duncombe ST928 BLACK HAWK Raymond 939 Penn Creek ST Brewers Creek ST Independence DELAWARE 967 Peosta Catfish Creek Webster City 359 Upper South Beaver Creek Dike 933 Evansdale ST Epworth ST ST Cedar River-Sink Creek Elk Run Heights Farley ST17 963 Sand Creek-Maquoketa River Delhi DUBUQUE ST 52 Drainage Ditch 206 South Fork North Black Hawk Creek 297 ST Wellsburg ST 282 Maquoketa River-Sand Creek Upper Iowa Owasa Hudson ST Upper Whitewater Creek Buckeye ST14 Gilbertville Steamboat Rock GRUNDY Holland Creek ST58 Worthington Upper Tipton Creek Lower Miller Creek Quasqueton Buffalo Creek-Silver Creek John Creek Kamrar Beaver Creek-Otter Creek 214 Holland 38 St. Donatus Iowa River-Pine Creek ST ST HAMILTON Upper Drainage Ditch 71 HARDIN ST218 Tetes Des Morts Creek Rowley Black Hawk Creek-Holland Creek Grundy Center ST17 175 Ryan Buck Creek-Maquoketa River 151 Apple-Plum ST Eldora Black Hawk Creek-Minnehaha Creek Cedar River-Miller Creek Hopkinton ST Boone River-Prairie Creek Long Dick Creek Morrison Wapsipinicon River-Dry Creek 175 Upper Miller Creek Bernard 299 Reinbeck ST Maquoketa Maquoketa River-Cline Creek Radcliffe ST La Porte City Brandon 283 Cascade Zwingle La Motte Jewell Junction Ellsworth ST175 Upper Honey Creek ST Middle Lytle Creek Hubbard 215 Bear Creek-Iowa River Buffalo Creek-Nugents Creek ST Middle Cedar Mosquito Creek-Black Hawk Creek Cedar River-Lime Creek Stanhope Walker Wapsipinicon River-Walton Creek Mill Creek-Storybrook Hollow 175 Coggon Bellevue ST New Providence 150 Silver Creek-Maquoketa River Little Wolf Creek ST Stratford 175 17-175 ST ST Lower Wolf Creek-Cedar River Farmer's Creek Upper Keigley Branch Whitten Lincoln Twelvemile Creek-Wolf Creek Mount Auburn Blue Creek ST920 Prairieburg Monticello Lower Lytle Creek Union Dowd Creek ST985 Randall Maquoketa River-Jurdan Creek Conrad 150 Lower Honey Creek Upper Wolf Creek-Cedar River ST Urbana Wapsipinicon River-Heatons Creek Upper Minerva Creek Pleasant Creek Beaman Central City 61 62 Kitty Creek ST ST Squaw Creek-Crooked Creek Central City 14 Pratt Creek Buffalo Creek-Helmer Creek JACKSON Story City Liscomb ST Middle Wolf Creek-Cedar River Traer Center Point Springbrook 8 8 198 Cedar River-Mud Creek West Kitty Creek Gladbrook 96 ST ST ST ST13 AndrewBrush Creek-Maquoketa River ST Coon Creek-Wolf Creek Dysart 38 221 ST ST Roland McCallsburg Zearing Vinton Maquoketa River-Deep Creek Asher Creek Middle Minerva Creek Hinkle Creek Indian Creek-Berrys Run Mississippi River-Rush Creek Alburnett Mineral Creek Garrison Cedar River-Nelson Creek 63 380 ST Stein Creek ST JONES Fraser Montgomery Creek-Squaw Creek Center Junction St. Anthony Burnett Creek Upper Deer Creek-Iowa River Upper Salt Creek Onslow Anamosa 428 Maquoketa River-Hainer Creek Gilbert Middle East Indian Creek ST 17 Clemons Albion Bear Creek-Wildcat Creek ST Squaw Creek-Lundys Creek Lower Minerva Creek 229 Mud Creek-Cedar River Beers Creek ST 64 Bear Creek-Little Bear Creek SpraguevilleCopper Creek Sabula 69 330 Garwin 21 Shellsburg ST 64 Monmouth Baldwin Apple-Plum ST West Indian Creek South Minerva Creek ST ST Upper Big Creek-Cedar River ST Maquoketa LINN Robins TAMA Clutier ST38-64 Wyoming Preston Miles South Branch Salt Creek Wapsipinicon River-Dutch Creek 64 954 Iowa River-Davisons Creek BENTON Palo ST ST Lower Elk River Boone Onion Creek Iowa River-Asher Creek Springville Bear Creek-Rat Run Lower Deer Creek-Iowa River Wildcat Creek Sugar Creek-Deep Creek Upper Linn Creek Hiawatha Des Moines River-Honey Creek Dye Creek Marion Marion 30 STORY Marshalltown 100 ST MARSHALL Cedar River-Silver Creek ST Martelle 38 930 ST 136 BOONE ST Ames Prairie Creek Headwaters Marion ST Delmar Lower Deep Creek-Maquoketa River Nevada Lower Linn Creek Middle Salt Creek Lower Big Creek-Cedar River Morley Wapsipinicon River-Sibles Creek Upper Elk River Squaw Creek-Worrell Creek Colo State Center Van Horne 199 Olin Elwood Creek Andover 133 Le Grand ST 94 ST Iowa River-Bennett Creek Elberon Keystone ST Ames Otter Creek-Iowa River Newhall Atkins Oxford Junction Goose Lake Vining 13 Walnut Creek-White Oak Creek 67 North Timber Creek Toledo 200 ST Lost Nation Upper Deep Creek-Maquoketa River Charlotte ST South Skunk River-Walnut Creek Lower East Indian Creek Montour ST 287 Morgan Creek Sibles Creek Luther Upper Prairie Creek ST Abbe Creek 234 Timber Creek Tama 279 Cedar Rapids Mill Creek-Wapsipinicon River Walnut Creek-South Skunk River Clear Creek-Drainage Ditch 2 ST ST Bertram Lower Salt Creek 82 Cedar Rapids ± 146 ST Pioneer Creek Kelley Melbourne Haverhill ST 30-218 Welton Ferguson Iowa River-Plague Creek 201 ST 30-151 CLINTON South Timber Creek Raven Creek ST Prairie Creek-Mud Creek ST Cedar River-Pleasant Run Mount Vernon Lisbon Silver Creek-Negro Creek Rhodes 131 Chelsea ST Prairie Creek-Weasel Creek Fairfax Mechanicsville Toronto Drainage Ditch 10 Ballard Creek-South Skunk River Middle Iowa 71 Indian Creek-Rock Creek Luzerne Blairstown Norway ST Stanwood Little Creek Collins Clear Creek-Cedar River Brophy Creek Huxley Cambridge Lutes Creek Clarence Drainage Ditch 12 ST136 Middle Des Moines Maxwell Belle Plaine 218 Rock Creek-West Rock Creek Snipe Creek Richland Creek-Iowa River ST Slater Laurel Walford Ely 956 Mill Creek-Brookside Creek 210 Madrid 210 Gilman Lowden ST ST ST Hoosier Creek Ames Creek Clinton 30 South Skunk North Walnut Creek Yankee Run ST Sheldahl Price Creek Knapp Creek Silver Creek-Crystal Creek Woodward Clear Creek-Mud Creek Shueyville ST415 South Skunk River-Coon Creek Swisher Wheatland 30 1 Lower Wapsipinicon Calamus ST Grand Mound De Witt 30 Copperas-Duck Iowa River-Coon Creek ST 38 ST 382 ST 61-30 Low Moor Camanche Baxter Walnut Creek-North Walnut Creek ST Cedar River-Mill Creek Rock Run ST Rock Creek-Sodus Creek ST223 2ST23-14 Mill Creek-Iowa River Alleman 212 141 117 ST Iowa River-Price Creek 220 Iowa River-Plum Creek Camanche ST ST Upper Big Bear Creek ST Solon Rock Creek-Wapsipinicon River North Skunk River-Alloway Creek Honey Creek-Middle Iowa River Marengo Elkhart 151 Wapsipinicon River-Barber Creek Beaver Creek-Royer Creek Hartwick ST CEDAR Tipton Iowa River-Hoosier Creek McCausland Polk City 224 6-151 380 965 Mingo ST Middle Big Bear Creek ST ST ST Lower Cedar Wapsipinicon River-Jones Creek Granger ST14 419 Bennett Dixon Polk City ST Ladora Hilton Creek Nicholson Creek 6 109 Bennet Creek ST6-63 ST Lower Big Bear Creek ST North Liberty 35 Grinnell 151 ST 931 Brooklyn ST Middle Clear Creek-Iowa River 956 ST Valeria Victor Rapid Creek New Liberty ST Ankeny Little Bear Creek-Middle Big Bear Creek 21 Upper Clear Creek-Iowa River Oxford Kellogg Oakland Acres ST Tiffin Long Grove Park View ST945 Coralville Cedar River-Rock Run Donahue 160 Malcom Mud Creek-Wapsipinicon River Unnamed Creek-Mud Creek DALLAS ST South Skunk River-Sugar Creek Lambs Grove 80 Lost Creek-Wapsipinicon River Princeton Newton ST Lower Clear Creek-Iowa River 61 ST44 Bondurant Old Mans Creek Headwaters Williamsburg 979 ST Dallas Center POLK Saylorville JASPER POWESHIEK IOWA ST West Branch ST130 Johnston Colfax JOHNSON Hickory Creek-Mud Creek Walnut Creek-Little Walnut Creek Grimes English River-Dugout Creek Williamsburg West Branch Maysville 401 Mitchellville Iowa City ST ST6 Upper English River University Heights SCOTT Eldridge Altoona Guernsey Upper Old Mans Creek Des Moines Des Moines Devils Run Unnamed Creek-Hickory Creek Urbandale Mud Creek-Big Elkhorn Creek ST6 Spencer Creek 65 950 Snyder Creek ST ST English River-Jordan Creek 921 80 Le Claire Walnut Creek-Raccoon River ST Durant 927 ST Old Mans Creek-Mooney Creek ST 74 Waukee Clive English River-Deep River 149 Mud Creek-West Branch Mud Creek ST Windsor Heights Slater Creek ST Old Mans Creek-Old Womans Creek Wilton 235 Lower Iowa Deep River Walcott North Raccoon ST Pleasant Hill Prairie City Lower Duck Creek Bettendorf West Des Moines English River-Devils Run Parnell West Liberty Atalissa Upper Duck Creek Reasnor Searsboro Montezuma Deep River Panorama Park Des Moines South Skunk River-Carson Creek Sully Lynnville Millersburg 80 Deer Creek-English River 280 Davenport ST 46 Hills Big Slough ST Riverdale Middle English River 67 Legend ST Dirty Face Creek Moon Creek Little Mosquito Creek ST Lower Raccoon River 70 71 Des Moines River-Yeader Creek ST316 Buck Creek-Iowa River ST ST Upper Raccoon River 5 5-28 Calhoun Creek Cedar River-Chicken Creek Pine Creek-Mississippi River Blue Grass ST ST Upper South English River Monroe Gritter Creek North English 405 38 Runnells South Skunk River-Van Zante Creek Buckley Creek North Skunk English River-Birch Creek ST ST Barnes City MUSCATINE Copperas-Duck Middle Creek-North River Counties Carlisle Riverside Lone Tree Lower Wapsinonoc Creek Lower South English River Kalona Riverside Cedar River-Pike Run Cumming Norwalk Middle South English River Mississippi River-Coal Creek Gibson English River-Bulgers Run Nichols Mad Creek Buffalo Badger Creek-North River Wellman North River-Middle Creek Swan New Sharon Iowa River-Goose Creek MuscatineMississippi River-Mad Creek Kinross 22 Highways 35 Hartford Upper Middle Creek Thornburg Keswick ST ST Middle River-Plug Run Des Moines River-Camp Creek 102 South English Lime Creek-English River ST22 Butcher Creek ST Muscatine 28 163 Thunder Creek 22 Webster Lake Red Rock ST ST ST Camp Creek-English River Davis Creek 65-69 ST70 Cedar River-Crane Creek Incorporated Cities ST Upper Muscatine Slough North River-Cedar Creek ST14 Spring Hill South Skunk River-Ballinger Creek ST923 Pella What Cheer Bridge Creek Upper West Fork Crooked Creek Public Lands MADISON Middle River-Felters Branch German Creek Conesville 61 1:300,000 Pleasantville 149 WASHINGTON ST Cedar Creek-North River 63 Lower Middle Creek ST Goose Creek Martensdale 92 ST Cedar River-Pike Creek Ackworth Sandyville ST KEOKUK Harper Keota 0 2.5 5 10 15 20 25 30 Patterson Bevington Indianola MAHASKA Fruitland HUC-8 Watersheds South River-Otter Creek White Breast Creek-Competine Creek 77 Miles Middle River-Clanton Creek MARION South Skunk River-Spring Creek ST 92-5 92 West Chester Letts Lower Muscatine Slough WARREN ST Leighton 92 ST North Fork Long Creek Kilometers ST Sigourney 92-1 Dutch Creek-Skunk River ST ST305 0 2.5 5 10 15 20 25 30 HUC-12 Subwatersheds Lower Clanton Creek South River-Painter Creek White Breast Creek-Hawk Run Knoxville Rose Hill Delta Harvey Middle West Fork Crooked Creek Short Creek-Iowa River St. Marys Skunk ST5-964 Washington South Fork Long Creek Cotter Fredonia Lower Des Moines South Skunk River-Snyder Creek North Skunk River-Middle Creek Ainsworth Karst - Within 1000 ft of sinkhole St. Charles ST349 Milo ST181 Oskaloosa North Skunk River-Bridge Creek Columbus Junction Grandview Jones Creek Painter Creek-South River Otter Creek-Turkey Creek Lower English Creek University Park LOUISA Walnut Creek-Crooked Creek Beacon ST137 Hayesville ST149 ST1 Columbus City Potential Karst - Carbonate bedrock 69 Lower Muchakinock Creek South Skunk River-Olive Branch Upper Long Creek-Iowa River ST 5 Big Slough Creek Upper Clanton Creek ST South Skunk River-Steady Run Skunk River-Clear Creek South River-Broadhorn Creek Cedar Creek-Honey Creek Iowa River-Otter Creek within 50 ft of the surface East Peru Cedar Creek Headwaters Truro Melcher-Dallas Fremont Crawfordsville