Devils Postpile National MonumentvsFirst State National Historical Park
First State National Historical Park has a higher Annual Visitors (2025) (200,173 vs 99,652 visitors), while First State National Historical Park has a higher Total Area (1,409 vs 800 acres), while First State National Historical Park has a higher Longitude (-76 vs -119 °).
Location & Classification
National Monument
Designation
National Historical Park
CA
State(s)
DE
38
Latitude
40
-119
Longitude
-76
Size & Visitation
800
Total Area
1,409
99,652
Annual Visitors (2025)
200,173
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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)).