Where is Castillo de San Marcos, St. Augustine, Florida?

Written by | Updated On: December 08, 2025, 13:55 ET

Castillo de San Marcos is located in St. Augustine, Florida, USA.It lies between the Atlantic Coast and the Matanzas River, situated in the historic downtown area, and is famous for being the oldest masonry fort in the United States.

Castillo de San Marcos Location Map, St. Augustine, Florida

Top Attractions Inside Castillo de San Marcos

  • Main Fort Structure – Massive coquina stone fortress built in the 1600s to protect St. Augustine.
  • Gun Deck – Upper level featuring historic cannons and sweeping views of Matanzas Bay.
  • Inner Courtyard – Central open space surrounded by barracks and storerooms.
  • Casemates – Arched interior rooms displaying artifacts, exhibits, and historical information.
  • Ranger Programs – Daily talks explaining the fort’s history, architecture, and military significance.
  • Cannon Firing Demonstrations – Live reenactments showcasing colonial-era artillery techniques.
  • Waterfront Views – Scenic vistas of St. Augustine’s bayfront and historic cityscape.

Castillo de San Marcos Facts

Official NameFort Clatsop – Lewis and Clark National Historical Park
LocationAstoria, Oregon, USA
Latitude & Longitude46.1344° N, 123.8807° W
Total Area~3,000 acres (1,214 hectares)
EstablishedReconstructed fort opened 1955; incorporated into Lewis & Clark NHP in 2004
Managed ByU.S. National Park Service (NPS)
Region / TypePacific Northwest / Historical National Park
Main FeaturesReconstructed Fort Clatsop, Visitor Center, exhibits on Lewis & Clark Expedition, hiking trails, wildlife habitat
Historical SignificanceWinter encampment site (1805–1806) of the Lewis and Clark Expedition Corps of Discovery
Visitor ActivitiesGuided tours, ranger programs, educational exhibits, hiking, wildlife viewing, photography
Trails & AccessPaved and natural trails through coastal forests and wetlands
Nearby LandmarksAstoria Riverwalk, Columbia River, Tillamook Head, Oregon Coast
Entry / FeesEntrance fee applies (~$10–$20 per vehicle or per person; varies by pass type)
Best Time to VisitJune–September (warmer, drier months)
Annual Visitors~250,000 per year
Nearby AirportPortland International Airport (PDX) – 153 km / 95 miles
TransportationCar, shuttle, guided tours, walking trails
Time ZonePacific Time (PT) – UTC−8 Standard / UTC−7 Daylight Saving
CurrencyUnited States Dollar (USD, $)
Official Websitehttps://www.nps.gov/lewi
Famous ForHistoric Lewis & Clark Expedition winter encampment, reconstructed fort, coastal forest and wetland ecosystems
DesignationNational Historical Park (part of Lewis & Clark NHP), listed on National Register of Historic Places

Distances from Castillo de San Marcos to Nearby Landmarks

  • St. Augustine Historic District – 0.5 km (0.3 mi)
  • Flagler College – 0.4 km (0.25 mi)
  • Lightner Museum – 0.5 km (0.3 mi)
  • Plaza de la Constitución – 0.3 km (0.2 mi)
  • Cathedral Basilica of St. Augustine – 0.6 km (0.4 mi)
  • Ripley's Believe It or Not! Museum – 0.7 km (0.4 mi)
  • St. George Street – 0.5 km (0.3 mi)
  • St. Augustine Lighthouse & Maritime Museum – 4 km (2.5 mi)
  • Ponce de Leon Hotel – 0.4 km (0.25 mi)
  • Fort Matanzas National Monument – 18 km (11 mi)
  • Castillo de San Marcos Visitor Center – 0 km (0 mi)
  • St. Augustine Pirate & Treasure Museum – 0.7 km (0.4 mi)
  • St. Augustine Alligator Farm Zoological Park – 5 km (3.1 mi)
  • Bayfront Marin House – 0.5 km (0.3 mi)
  • Fountain of Youth Archaeological Park – 2 km (1.2 mi)
  • St. Augustine Amphitheatre – 5 km (3.1 mi)
  • Vilano Beach – 6 km (3.7 mi)
  • St. Augustine Beach – 11 km (6.8 mi)
  • Historic Bridge of Lions – 0.8 km (0.5 mi)
  • Government House Museum – 0.6 km (0.4 mi)