Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
268186
| DE | | Upper Chesapeake (HUC6) non-specific | 1981 |
02060000
| Upper Chesapeake | established |
35125
| MD | | upper Chesapeake drainage, western part | 1980 |
02060000
| Upper Chesapeake | established |
268187
| MD | | Upper Chesapeake (HUC6) non-specific | 1981 |
02060000
| Upper Chesapeake | established |
1677553
| MD | Baltimore | 904?996 Frankfurst Ave, Baltimore, MD, US | 2015 |
02060003
| Gunpowder-Patapsco | |
1674024
| MD | Baltimore | Baltimore County, MD, USA | 2020 |
02060003
| Gunpowder-Patapsco | |
1673794
| MD | Baltimore | Garrison Forest Rd, Owings Mills, MD, US | 2019 |
02060003
| Gunpowder-Patapsco | |
1679981
| MD | Baltimore | Owings Mills, MD, US | 2021 |
02060003
| Gunpowder-Patapsco | |
1677680
| MD | Carroll | 7615 Mathis Ln, Mount Airy, MD, US | 2017 |
02060003
| Gunpowder-Patapsco | |
1671566
| MD | Carroll | Liberty Lake, Sykesville, MD, US | 2018 |
02060003
| Gunpowder-Patapsco | |
1655052
| MD | Howard | Centennial Lake, Ellicott City, MD, US | 2020 |
02060006
| Patuxent | established |
1670858
| MD | Howard | Gateway Business Park, Columbia, MD | 2016 |
02060006
| Patuxent | |
1676001
| MD | Howard | Youngsea Pl, Columbia, MD, US | 2021 |
02060006
| Patuxent | |
1676002
| MD | Howard | Youngsea Pl, Columbia, MD, US | 2021 |
02060006
| Patuxent | |
1676004
| MD | Howard | Youngsea Pl, Columbia, MD, US | 2021 |
02060006
| Patuxent | |