State #Rivers #Gauges Options
Alabama, US 94 437
Alaska, US 141 461
Arizona, US 46 387
Arkansas, US 177 474
California, US 375 2817
Colorado, US 256 2208
Connecticut, US 29 162
Delaware, US 3 46
District of Columbia, US 3 17
Florida, US 7 521
Georgia, US 171 915
Hawaii, US 5 164
Idaho, US 187 692
Illinois, US 46 514
Indiana, US 36 576
Iowa, US 22 490
Kansas, US 4 328
Kentucky, US 95 552
Louisiana, US 12 438
Maine, US 219 250
Maryland, US 117 387
Massachusetts, US 50 282
Michigan, US 146 414
Minnesota, US 100 436
Mississippi, US 3 271
Missouri, US 61 629
Montana, US 110 565
Nebraska, US 4 286
Nevada, US 18 228
New Hampshire, US 110 203
New Jersey, US 28 458
New Mexico, US 42 335
New York, US 392 904
North Carolina, US 236 955
North Dakota, US 3 207
Ohio, US 102 729
Oklahoma, US 28 362
Oregon, US 334 834
Pennsylvania, US 221 1024
Puerto Rico, US 11 43
Rhode Island, US 3 34
South Carolina, US 89 496
South Dakota, US 13 348
Tennessee, US 216 594
Texas, US 137 1330
Utah, US 90 400
Vermont, US 83 197
Virginia, US 262 785
Washington, US 360 1042
West Virginia, US 300 537
Wisconsin, US 238 677
Wyoming, US 88 498
Lost Gauges Ignored Gauges Dead Gauges