Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
30798
| CO | | South Platte (HUC6) non-specific | 1998 |
10190000
| South Platte | established |
264468
| MT | Blaine | Milk River | 1998 |
10050004
| Middle Milk | established |
264476
| MT | Dawson | Yellowstone River | 1998 |
10100004
| Lower Yellowstone | established |
292251
| MT | Dawson | Yellowstone River(River Miles: 70.8 to 70.9) | 1998 |
10100004
| Lower Yellowstone | established |
289031
| MT | Hill | Beaver Creek Reservoir | 1998 |
10050004
| Middle Milk | established |
289079
| MT | Petroleum | Petrolia Reservoir | 1998 |
10040203
| Flatwillow | established |
289080
| MT | Petroleum | Petrolia Reservoir | 1998 |
10040203
| Flatwillow | established |
264496
| MT | Phillips | Milk River | 1998 |
10050004
| Middle Milk | established |
292225
| MT | Phillips | Milk River(River Miles: 228.3 to 229)[Calculated using NHD+ v2.0 GIS dataset] | 1998 |
10050004
| Middle Milk | established |
292228
| MT | Phillips | Milk River(River Miles: 278.8 to 278.9)[Calculated using NHD+ v2.0 GIS dataset] | 1998 |
10050004
| Middle Milk | established |
292214
| MT | Valley | Milk River(River Miles: 10 to 40)[Calculated using NHD+ v2.0 GIS dataset] | 1998 |
10050012
| Lower Milk | established |
292222
| MT | Valley | Milk River(River Miles: 120 to 140)[Calculated using NHD+ v2.0 GIS dataset] | 1998 |
10050012
| Lower Milk | established |
292216
| MT | Valley | Milk River(River Miles: 40 to 90)[Calculated using NHD+ v2.0 GIS dataset] | 1998 |
10050012
| Lower Milk | established |
292218
| MT | Valley | Milk River(River Miles: 90 to 120.6)[Calculated using NHD+ v2.0 GIS dataset] | 1998 |
10050012
| Lower Milk | established |
292209
| MT | Valley | Milk River, river miles 0-10. | 1998 |
10050012
| Lower Milk | established |
546554
| NE | Nemaha | Missouri River, Hamburg Bend chute | 1998 |
10240005
| Tarkio-Wolf | established |
546556
| NE | Otoe | Missouri River, Hamburg Bend Mitigation Site | 1998 |
10240001
| Keg-Weeping Water | established |
546555
| SD | Bon Homme | Platte River | 1998 |
10170101
| Lewis and Clark Lake | established |