| Name |
County |
| Antietam Creek Picnic Area |
Washington County |
| Barrier Island Visitor Center Picnic Area |
Worcester County |
| Battie Mixon Picnic Area |
Allegany County |
| Bayside Picnic Area |
Worcester County |
| Big Slackwater Picnic Area |
Washington County |
| Brunswick Picnic Area |
Frederick County |
| Carderock Pavilion |
Montgomery County |
| Chestnut Picnic Area |
Frederick County |
| Dargan Bend Picnic Area |
Washington County |
| Four Locks Picnic Area |
Washington County |
| Gambrill Mill Picnic Area |
Frederick County |
| Great Falls Picnic Area |
Montgomery County |
| Little Tonoloway Picnic Area |
Washington County |
| Lock 23 Picnic Area |
Montgomery County |
| Lock 75 Picnic Area |
Allegany County |
| Lock 8 Picnic Area |
Montgomery County |
| Monocacy Aqueduct Picnic Area |
Montgomery County |
| Nolands Ferry Picnic Area |
Frederick County |
| North Beach Picnic Area |
Worcester County |
| North Beach Picnic Shelter |
Worcester County |
| North Branch Picnic Area |
Allegany County |
| Oldtown Picnic Area |
Allegany County |
| Owens Creek Picnic Area |
Frederick County |
| Paw Paw Picnic Area |
Allegany County |
| Paw Paw Tunnel Picnic Area |
Allegany County |
| Picnic Area |
Washington County |
| Picnic Area |
Prince George's County |
| Picnic Area |
Montgomery County |
| Picnic Area |
Prince George's County |
| Picnic Area |
Prince George's County |
| Picnic Area |
Prince George's County |
| Picnic Area |
Prince George's County |
| Picnic Area |
Frederick County |
| Picnic Area |
Prince George's County |
| Picnic Area |
Prince George's County |
| Picnic Area |
Washington County |
| Picnic Area |
Baltimore city |
| Picnic Area |
Baltimore County |
| Picnic Area |
Prince George's County |
| Picnic Area A |
Prince George's County |
| Picnic Area B |
Prince George's County |
| Picnic Area C |
Prince George's County |
| Picnic Area D |
Prince George's County |
| Seneca Creek Picnic Area |
Montgomery County |
| Seneca Creek Picnic Area |
Montgomery County |
| Seneca Creek Picnic Area |
Montgomery County |
| Spring Gap Picnic Area |
Allegany County |
| Swains Lock Concession |
Montgomery County |
| Warm Water Fishing Picnic Area |
Montgomery County |
| Williamsport Picnic Area |
Washington County |
