State #Rivers #Gauges Options
Alabama, US 94 436
Alaska, US 141 461
Arizona, US 46 387
Arkansas, US 177 471
California, US 375 2817
Colorado, US 256 2206
Connecticut, US 29 162
Delaware, US 3 45
District of Columbia, US 3 17
Florida, US 7 520
Georgia, US 171 915
Hawaii, US 5 163
Idaho, US 187 692
Illinois, US 46 512
Indiana, US 36 567
Iowa, US 22 490
Kansas, US 4 326
Kentucky, US 95 552
Louisiana, US 12 437
Maine, US 219 250
Maryland, US 117 387
Massachusetts, US 50 282
Michigan, US 146 412
Minnesota, US 100 424
Mississippi, US 3 270
Missouri, US 61 628
Montana, US 110 561
Nebraska, US 4 286
Nevada, US 18 228
New Hampshire, US 110 203
New Jersey, US 28 455
New Mexico, US 42 335
New York, US 392 898
North Carolina, US 236 952
North Dakota, US 3 206
Ohio, US 102 727
Oklahoma, US 28 362
Oregon, US 333 832
Pennsylvania, US 221 1023
Puerto Rico, US 11 43
Rhode Island, US 3 34
South Carolina, US 89 495
South Dakota, US 13 348
Tennessee, US 216 590
Texas, US 137 1320
Utah, US 90 399
Vermont, US 83 194
Virginia, US 262 779
Washington, US 360 1040
West Virginia, US 300 502
Wisconsin, US 238 674
Wyoming, US 88 498
Lost Gauges Ignored Gauges Dead Gauges