Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
289823
| MT | Roosevelt | West Fork Poplar River River Mile: 0 to 86.9 | 1956 |
10060004
| West Fork Poplar | established |
289822
| MT | Roosevelt | West Fork Poplar River River Mile: 0 to 86.9 | 1957 |
10060004
| West Fork Poplar | established |
289821
| MT | Roosevelt | West Fork Poplar River River Mile: 0 to 86.9 | 1964 |
10060004
| West Fork Poplar | established |