Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
289980
| MT | Chouteau | Dry Fork Reservoir | 1992 |
10050005
| Big Sandy | established |
289979
| MT | Chouteau | Dry Fork Reservoir | 1993 |
10050005
| Big Sandy | established |
289978
| MT | Chouteau | Dry Fork Reservoir | 1996 |
10050005
| Big Sandy | established |
289977
| MT | Chouteau | Dry Fork Reservoir | 2003 |
10050005
| Big Sandy | established |
289976
| MT | Chouteau | Dry Fork Reservoir | 2005 |
10050005
| Big Sandy | established |
289975
| MT | Chouteau | Dry Fork Reservoir | 2006 |
10050005
| Big Sandy | established |
289974
| MT | Chouteau | Dry Fork Reservoir | 2007 |
10050005
| Big Sandy | established |
289882
| MT | Hill | Big Sandy Creek River Miles: 0 | 1985 |
10050005
| Big Sandy | established |
289883
| MT | Hill | Big Sandy Creek River Miles: 0 | 1985 |
10050005
| Big Sandy | established |
289881
| MT | Hill | Big Sandy Creek River Miles: 0 | 1985 |
10050005
| Big Sandy | established |
289880
| MT | Hill | Big Sandy Creek River Miles: 0 | 1986 |
10050005
| Big Sandy | established |
289876
| MT | Hill | Big Sandy Creek River Miles: 0 | 1987 |
10050005
| Big Sandy | established |
289879
| MT | Hill | Big Sandy Creek River Miles: 0 | 1987 |
10050005
| Big Sandy | established |