Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
28081
| AZ | | Colorado River, lower | 1967 |
15030107
| Lower Colorado | failed |
27930
| AZ | | state non-specific | 1945 |
15000000
| Lower Colorado Region | failed |
27564
| AZ | Mohave | Colorado River at Davis Dam | 1973 |
15030101
| Havasu-Mohave Lakes | failed |
28080
| AZ | Mohave | Lake Havasu | 1950 |
15030101
| Havasu-Mohave Lakes | failed |
27965
| AZ | Mohave | Lake Havasu first point south of Needles Boat Landing | 1950 |
15030101
| Havasu-Mohave Lakes | failed |
39363
| CA | | Colorado River below Davis dam | 1971 |
15030101
| Havasu-Mohave Lakes | failed |
29743
| CA | San Bernardino | Lake Havasu first point south of Needles Boat Landing | 1950 |
15030101
| Havasu-Mohave Lakes | failed |