State #Rivers #Gauges Options
Alabama, US 94 432
Alaska, US 141 456
Arizona, US 46 386
Arkansas, US 177 466
California, US 375 2805
Colorado, US 255 2197
Connecticut, US 29 162
Delaware, US 3 45
District of Columbia, US 3 17
Florida, US 7 518
Georgia, US 171 904
Hawaii, US 5 162
Idaho, US 187 690
Illinois, US 46 495
Indiana, US 36 561
Iowa, US 22 488
Kansas, US 4 323
Kentucky, US 95 551
Louisiana, US 12 431
Maine, US 219 246
Maryland, US 117 387
Massachusetts, US 50 282
Michigan, US 146 411
Minnesota, US 100 404
Mississippi, US 3 267
Missouri, US 61 628
Montana, US 109 559
Nebraska, US 4 283
Nevada, US 15 214
New Hampshire, US 110 203
New Jersey, US 28 455
New Mexico, US 42 324
New York, US 392 895
North Carolina, US 236 934
North Dakota, US 3 204
Ohio, US 102 727
Oklahoma, US 28 360
Oregon, US 333 830
Pennsylvania, US 221 1023
Puerto Rico, US 11 43
Rhode Island, US 3 34
South Carolina, US 89 489
South Dakota, US 13 346
Tennessee, US 213 589
Texas, US 137 1306
Utah, US 90 399
Vermont, US 83 194
Virginia, US 262 774
Washington, US 360 1036
West Virginia, US 300 503
Wisconsin, US 234 665
Wyoming, US 88 497
Lost Gauges Ignored Gauges Dead Gauges