State #Rivers #Gauges Options
Alabama, US 94 417
Alaska, US 141 451
Arizona, US 46 384
Arkansas, US 177 457
California, US 374 2791
Colorado, US 249 1716
Connecticut, US 29 162
Delaware, US 3 45
District of Columbia, US 3 15
Florida, US 7 511
Georgia, US 167 901
Hawaii, US 5 161
Idaho, US 186 677
Illinois, US 46 492
Indiana, US 36 558
Iowa, US 22 487
Kansas, US 4 321
Kentucky, US 95 550
Louisiana, US 12 409
Maine, US 219 244
Maryland, US 117 384
Massachusetts, US 50 282
Michigan, US 145 407
Minnesota, US 100 399
Mississippi, US 3 262
Missouri, US 61 627
Montana, US 109 557
Nebraska, US 4 278
Nevada, US 15 209
New Hampshire, US 110 203
New Jersey, US 26 454
New Mexico, US 42 321
New York, US 392 890
North Carolina, US 235 918
North Dakota, US 3 200
Ohio, US 102 721
Oklahoma, US 28 360
Oregon, US 332 826
Pennsylvania, US 219 1020
Puerto Rico, US 11 28
Rhode Island, US 3 33
South Carolina, US 89 484
South Dakota, US 13 343
Tennessee, US 213 589
Texas, US 137 1295
Utah, US 90 398
Vermont, US 83 194
Virginia, US 262 770
Washington, US 359 1032
West Virginia, US 300 502
Wisconsin, US 231 660
Wyoming, US 88 497
Lost Gauges Ignored Gauges Dead Gauges