State #Rivers #Gauges Options
Alabama, US 94 420
Alaska, US 141 453
Arizona, US 46 385
Arkansas, US 177 458
California, US 374 2794
Colorado, US 250 2044
Connecticut, US 29 162
Delaware, US 3 45
District of Columbia, US 3 17
Florida, US 7 512
Georgia, US 170 902
Hawaii, US 5 161
Idaho, US 186 677
Illinois, US 46 493
Indiana, US 36 560
Iowa, US 22 487
Kansas, US 4 322
Kentucky, US 95 550
Louisiana, US 12 409
Maine, US 219 244
Maryland, US 117 385
Massachusetts, US 50 282
Michigan, US 145 407
Minnesota, US 100 399
Mississippi, US 3 264
Missouri, US 61 628
Montana, US 109 557
Nebraska, US 4 279
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 235 920
North Dakota, US 3 201
Ohio, US 102 721
Oklahoma, US 28 360
Oregon, US 332 826
Pennsylvania, US 220 1020
Puerto Rico, US 11 28
Rhode Island, US 3 33
South Carolina, US 89 484
South Dakota, US 13 344
Tennessee, US 213 589
Texas, US 137 1301
Utah, US 90 398
Vermont, US 83 194
Virginia, US 262 770
Washington, US 359 1033
West Virginia, US 300 503
Wisconsin, US 233 663
Wyoming, US 88 497
Lost Gauges Ignored Gauges Dead Gauges