Public lands in Maryland

7 units whose boundary reaches Maryland, 66,493 acres counted whole even where a boundary crosses into another state. 7 national wildlife refuges. Largest first within each type.

National wildlife refuges

All national wildlife refuges →

Refuge · USFWS

Blackwater National Wildlife Refuge

34,765 acres2 campgrounds near

Refuge · USFWS

Patuxent Research Refuge

12,952 acres3 campgrounds near

Refuge · USFWS

Chincoteague National Wildlife Refuge

12,338 acres1 campground near

Refuge · USFWS

Martin National Wildlife Refuge

4,281 acresNational Wildlife Refuge

Refuge · USFWS

Eastern Neck National Wildlife Refuge

2,124 acresNational Wildlife Refuge

Refuge · USFWS

Southern Maryland Woodlands National Wildlife Refuge

32 acresNational Wildlife Refuge

Refuge · USFWS

Susquehanna National Wildlife Refuge

0.9 acresNational Wildlife Refuge

Boundaries come from the agencies’ own layers. A unit is listed in every state its boundary reaches. Data refreshed September 18, 2026.