Devils Postpile National MonumentvsManassas National Battlefield Park
Manassas National Battlefield Park has a higher Total Area (5,087 vs 800 acres), while Manassas National Battlefield Park has a higher Annual Visitors (2025) (473,482 vs 99,652 visitors), while Manassas National Battlefield Park has a higher Longitude (-78 vs -119 °).
Location & Classification
National Monument
Designation
National Battlefield Park
CA
State(s)
VA
38
Latitude
39
-119
Longitude
-78
Size & Visitation
800
Total Area
5,087
99,652
Annual Visitors (2025)
473,482
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Data sourced from NPS Boundary & Tract Data Service (US Government (public domain)), NPS Visitor Use Statistics (2025) (CC0 (public domain)), NPS Acreage Report (Q1 2026) (US Government (public domain)).