Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
290413
| MT | Musselshell | Musselshell River(River Miles: 141.9 to 142)[Calculated using NHD+ v2.0 GIS dataset] | 2008 |
10040202
| Middle Musselshell | established |
290746
| MT | Musselshell | North Willow Creek(River Miles: 21.6 to 21.7) | 2003 |
10040202
| Middle Musselshell | established |
290745
| MT | Musselshell | North Willow Creek(River Miles: 21.6 to 21.7) | 2003 |
10040202
| Middle Musselshell | established |
290748
| MT | Musselshell | North Willow Creek(River Miles: 21.6 to 21.7) | 2004 |
10040202
| Middle Musselshell | established |
290747
| MT | Musselshell | North Willow Creek(River Miles: 21.6 to 21.7) | 2006 |
10040202
| Middle Musselshell | established |
290410
| MT | Rosebud | Musselshell River(River Miles: 125.1 to 125.2)[Calculated using NHD+ v2.0 GIS dataset] | 2006 |
10040202
| Middle Musselshell | established |
290411
| MT | Rosebud | Musselshell River(River Miles: 129 to 129.1)[Calculated using NHD+ v2.0 GIS dataset] | 2003 |
10040202
| Middle Musselshell | established |
290787
| MT | Rosebud | Rattlesnake Creek(River Miles: 19.1 to 19.2) | 2006 |
10040202
| Middle Musselshell | established |