Colorado Map scale: 1:5,000,000 Individual District scale: 1:3,500,000 54 District District Name 56 55 SOUTH PLATTE RIVER BASIN COLORADO BASINS 47 76 43 White River Basin 48 3 District District Name 44 Lower Yampa River 44 58 64 47 North Platte River Basin 57 36 Blue River Basin 54 Slater / Timberlake Creeks 37 Eagle River Basin 55 Little Snake River 4 38 Roaring Fork River Basin 56 Green River Basin 43 YAMPA / WHITE RIVER BASIN 39 Rifle / Elk / Parachute Creeks COLORADO RIVER BASIN 57 Middle Yampa River 5 45 Divide Creek 58 Upper Yampa River 65 50 Muddy / Troublesome Creeks 6 2 1 51 Upper Colorado / Fraser Rivers 52 Piney / Cottonwood Creeks 50 7 53 Tribs. North of Colorado River 70 Roan Creek Basin 53 51 9 72 Lower Colorado River 52 STATE OF COLORADO RIVER BASINS 80 39 8 49 70 37 36 45 23 Division 6 (! Division 1 38 Steamboat Springs (! Greeley 72 District District Name District District Name State Engineer's Office (! Denver 1 South Platte: Greeley to Balzac 9 Bear Creek Division 5 (! 2 South Platte: Denver Gage to Greeley 23 Upper South Platte Glenwood Springs 3 Cache La Poudre River 48 Laramie River 4 Big Thompson River 49 Republican River GUNNISON RIVER BASIN 5 St. Vrain Creek 64 South Platte: Balzac to Stateline 6 Boulder Creek 65 Arikaree River 7 Clear Creek 76 Sand Creek 73 Division 4 8 South Platte: Cheesman to Denver Gage 80 North Fork of South Platte 42 40 (! Montrose Division 2 59 Pueblo 63 (! 41 ARKANSAS RIVER BASIN 61 28 Division 3 Division 7 60 68 62 Alamosa Durango (! (! 11 10 District District Name 12 28 Tomichi Creek SAN JUAN / DOLORES RIVER BASIN 67 40 North Fork / Tribs. 69 14 17 41 Lower Uncompahgre River 26 25 13 42 Lower Gunnison River 71 15 59 East River Basin 27 RIO GRANDE 60 San Miguel River Basin 32 30 RIVER BASIN 79 61 Paradox Creek 78 20 62 Upper Gunnison River 31 29 63 Dolores River Basin 34 33 16 68 Upper Uncompaghre River 46 77 35 18 73 Little Dolores River 21 19 District District Name 66 22 24 29 San Juan River Basin 30 Animas River Basin District District Name District District Name District District Name 31 Los Pinos River Basin State of Colorado 32 McElmo Creek Basin 20 Rio Grande Department of Natural Resources 10 Fountain Creek 17 Arkansas: Fowler to Las Animas 33 La Plata River Basin 21 Alamosa La Jara Division of Water Resources 11 Arkansas: Headwaters to Salida 18 Apishapa River Glenwood Springs, CO 34 Mancos River Basin 22 Conejos River 12 Arkansas: Salida to Portland 19 Purgatoire River Colorado River Basins 46 Navajo Reservoir 24 Culebra Creek state river basins.mxd 13 Wet Mountain Valley 66 Cimarron River Basin 69 Disappointment Creek Basin 25 San Luis Creek March 16, 2005 14 Arkansas: Portland to Fowler 67 Arkansas: Las Animas to Stateline 71 West Dolores Creek / Tribs. 26 Saguache Creek 15 Saint Charles 79 Huerfano River µ 77 Navajo River Basin 27 Carnero Creek 16 Cucharas River 78 Piedra River Basin 35 Trinchera Creek.