Public lands in Maryland

7 units whose boundary reaches Maryland. They are 7 national wildlife refuges, largest first within each type.

Acreage in Maryland

National wildlife refuges
54,334 acres

Each figure is the acreage inside Maryland for one kind of unit, summed over the units listed below. A unit that crosses into another state counts only the part of its boundary that lies in Maryland.

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 acres2 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 or territory its boundary reaches. Data refreshed November 1, 2026.