State #Rivers #Gauges Options
Alabama, US 94 422
Alaska, US 141 456
Arizona, US 46 386
Arkansas, US 177 465
California, US 375 2801
Colorado, US 250 2188
Connecticut, US 29 162
Delaware, US 3 45
District of Columbia, US 3 17
Florida, US 7 517
Georgia, US 170 904
Hawaii, US 5 162
Idaho, US 186 690
Illinois, US 46 494
Indiana, US 36 561
Iowa, US 22 488
Kansas, US 4 322
Kentucky, US 95 551
Louisiana, US 12 417
Maine, US 219 246
Maryland, US 117 385
Massachusetts, US 50 282
Michigan, US 146 409
Minnesota, US 100 403
Mississippi, US 3 266
Missouri, US 61 628
Montana, US 109 559
Nebraska, US 4 282
Nevada, US 15 212
New Hampshire, US 110 203
New Jersey, US 28 454
New Mexico, US 42 324
New York, US 392 894
North Carolina, US 236 925
North Dakota, US 3 203
Ohio, US 102 722
Oklahoma, US 28 360
Oregon, US 332 830
Pennsylvania, US 221 1022
Puerto Rico, US 11 28
Rhode Island, US 3 33
South Carolina, US 89 485
South Dakota, US 13 345
Tennessee, US 213 589
Texas, US 137 1305
Utah, US 90 399
Vermont, US 83 194
Virginia, US 262 769
Washington, US 359 1035
West Virginia, US 300 503
Wisconsin, US 234 664
Wyoming, US 88 497
Lost Gauges Ignored Gauges Dead Gauges