Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
41927
| OR | Umatilla | McKay Reservoir, 6 miles south of Pendleton on hwy 395 | 1980 |
17070103
| Umatilla | established |
41429
| OR | Umatilla | McKay Reservoir, 6 miles south of Pendleton on hwy 395 | 2001 |
17070103
| Umatilla | established |
297531
| OR | Umatilla | McKay Reservoir, 6 miles south of Pendleton on hwy 395 | 2009 |
17070103
| Umatilla | established |
297537
| OR | Umatilla | McKay Reservoir, 6 miles south of Pendleton on hwy 395 | 2013 |
17070103
| Umatilla | established |