Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
264189
| MT | Big Horn | Fly Creek | 2002 |
10070007
| Upper Yellowstone-Pompeys Pillar | established |
1697821
| MT | Yellowstone | Broadview Pond | 1999 |
10070007
| Upper Yellowstone-Pompeys Pillar | established |
264456
| MT | Yellowstone | Twelve Mile Creek | 2003 |
10070007
| Upper Yellowstone-Pompeys Pillar | established |
610024
| MT | Yellowstone | Twelve Mile Creek. Township - 2N; Range - 27E; Section - 19. Maps: 250k - Billings; 24k - Rattlesnake Butte; 100k - Billings. Downmark - Yellowstone River; Upmark - Twelve Mile Siphon. | 2003 |
10070007
| Upper Yellowstone-Pompeys Pillar | established |