Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
35059
| MD | | Tank Station, W.M.R.R., North Patapsco Creek, tributary of Patapsco | 1874 |
02060003
| Gunpowder-Patapsco | failed |
35067
| MD | Baltimore | Freeland, Gunpowder River, Trib. of Gunpowder | 1874 |
02060003
| Gunpowder-Patapsco | failed |
35070
| MD | Baltimore? | Gores Meadow, Gunpowder River, Trib. of Gunpowder | 1874 |
02060003
| Gunpowder-Patapsco | failed |
35068
| MD | Baltimore? | Middletown, Gunpowder River, Trib. of Gunpowder | 1874 |
02060003
| Gunpowder-Patapsco | failed |
35066
| MD | Baltimore? | Parkton, Gunpowder River, Trib. of Gunpowder | 1874 |
02060003
| Gunpowder-Patapsco | failed |
35080
| MD | Carroll | Hood's Mill, Patapsco River, Trib of Patapsco | 1874 |
02060003
| Gunpowder-Patapsco | failed |
35082
| MD | Howard | 3 branches of Patuxent River | 1874 |
02060006
| Patuxent | failed |
35085
| MD | Montgomery | Patuxent River near source | 1874 |
02060006
| Patuxent | failed |