5 places · Related Area

Related Areas

The Park Service lists 5 places designated Related Area, spread across 9 states and territories. None of them is a unit of the National Park System. None of them charges an entrance fee.

Where they are

Free to enter Charges an entrance feePoints are the Park Service reference point for each unit, not a boundary.

Ranked by 2025 visits

All units ranked →
No 2025 count · AK
Alaska Public Lands
Free to enterNo alerts
No 2025 count · DC, DE, MD, NY, PA, VA, WV
Chesapeake Bay
Free to enterNo alerts
No 2025 count · DC, MD, VA
Civil War Defenses of Washington
Free to enter1 alert
No 2025 count · ME
Maine Acadian Culture
Free to enterNo alerts
No 2025 count · NY
National Parks of New York Harbor
Free to enterNo alerts

States with this designation

All states →
Alaska 1District of Columbia 2Delaware 1Maryland 2Maine 1New York 2Pennsylvania 1Virginia 2West Virginia 1

Visit counts are from the NPS Visitor Use Statistics system. Designations, fees, alerts and campgrounds are from the NPS API. Data refreshed October 14, 2026. Other unit types.