Castillo de San Marcos National MonumentvsDevils Tower National Monument

Devils Tower National Monument has a higher Total Area (1,347 vs 19 acres), while Devils Tower National Monument has a higher Latitude (45 vs 30 °), while Castillo de San Marcos National Monument has a higher Longitude (-81 vs -105 °).

Location & Classification

National Monument

Designation

National Monument

FL

State(s)

WY

30

Latitude

45

-81

Longitude

-105

Size & Visitation

19

Total Area

1,347

598,070

Annual Visitors (2025)

515,303

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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)).