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Devils Postpile National MonumentvsGateway Arch National Park

Gateway Arch National Park has a higher Annual Visitors (2025) (2,209,028 vs 99,652 visitors), while Devils Postpile National Monument has a higher Total Area (800 vs 193 acres), while Gateway Arch National Park has a higher Longitude (-90 vs -119 °).

Location & Classification

National Monument
Designation
National Park
CA
State(s)
MO
38
Latitude
39
-119
Longitude
-90

Size & Visitation

800
Total Area
193
99,652
Annual Visitors (2025)
2,209,028

Similar Comparisons to Devils Postpile National Monument vs Gateway Arch National Park

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)).