Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
612443
| NE | Cherry | 7.5 mi. S. of Merriman on Hwy 61, Site-138; T33N,R37W,Sec.28,NW1/4ofNW1/4; UTM 14T 279984E 4743542N; Upper Niobrara River | 2003 |
10150003
| Upper Niobrara | established |
612835
| NE | Sheridan | Hwy 27, 11 mi. S. Gordon, Site-280; T31N,R42W,Sec.26,SE1/4ofNE1/4; UTM 13T 728920E 4724509N; Upper Niobrara River | 2003 |
10150003
| Upper Niobrara | established |