Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
285189
| MT | Carter | Crow Creek River Miles: 10.3 to 10.4 | 2004 |
10090209
| Lower Powder | established |
285191
| MT | Carter | Crow Creek River Miles: 10.6 to 10.7 | 2002 |
10090209
| Lower Powder | established |
291220
| MT | Custer | Powder River(River Miles: 30.9 to 31) | 1975 |
10090209
| Lower Powder | established |
291221
| MT | Custer | Powder River(River Miles: 45.7 to 45.8) | 1976 |
10090209
| Lower Powder | established |
285312
| MT | Custer | Sheep Creek River Miles: 11.6 to 11.7 | 2004 |
10090209
| Lower Powder | established |
285311
| MT | Custer | Sheep Creek River Miles: 2 to 2.1 | 2006 |
10090209
| Lower Powder | established |
285367
| MT | Custer | Spring Creek River Miles: 14.1 to 14.2 | 2005 |
10090209
| Lower Powder | established |
285368
| MT | Custer | Spring Creek River Miles: 14.3 to 14.4 | 2005 |
10090209
| Lower Powder | established |
285369
| MT | Custer | Spring Creek River Miles: 14.3 to 14.4 | 2006 |
10090209
| Lower Powder | established |
285370
| MT | Custer | Spring Creek River Miles: 14.7 to 14.8 | 2006 |
10090209
| Lower Powder | established |
291222
| MT | Powder River | Powder River(River Miles: 135.3 to 135.4) | 2006 |
10090209
| Lower Powder | established |
285374
| MT | Prairie | Tenmile Creek River Miles: 1 to 1.1 | 2010 |
10090209
| Lower Powder | established |