Fort Marion

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Castillo de San Marcos NM
1 South Castillo Drive
St. Augustine, FL 32084
Visitor Information
Phone: 904-829-6506
Fax 904-823-9388

The Castillo de San Marcos National Monument is located in downtown St. Augustine, Florida. St. Augustine is located on Florida’s Northeastern Atlantic coast about midway between Jacksonville and Daytona Beach.


Castillo de San Marcos is a Spanish built fort located in the city of St. Augustine, Florida. It was known as Fort Marion from 1821 until 1842, and Fort St. Mark from 1763 until 1784 while under British control.

Fort Marion, now called The Castillo de San Marcos, built 1672–1695, served primarily as an outpost of the Spanish Empire, guarding St. Augustine, Florida, the first permanent European settlement in the continental United States, and also protecting the sea route for treasure ships returning to Spain.

Although the Castillo has served a number of nations throughout its history, it has never been taken by military force. During the 18th century, the Castillo went from Spanish control to British and back to the Spanish, all by treaty. The Spanish remained in power in Florida until the area was purchased by the United States in 1821.

In 1837, the Seminole Indian warrior Osceola was imprisoned at Fort Marion after he arrived for supposed truce negotiations with U.S. General Thomas Sidney Jesup.

Called Fort Marion at this time, the Castillo was used by the U.S. Army until 1899. The Castillo was made a National Monument in 1924 and became part of the National Park system in 1933. In 1942, Congress restored the original name. The park consists of the original historic Castillo fortress itself with its attendant grounds, some 25 total acres.


$6 per adult for a seven day pass.
Children 15 and under are free and must be accompanied by an adult.
Castillo de San Marcos Annual Pass is $30 and admits the pass owner plus
any 3 adults for a full 12 months.


The Castillo de San Marcos is open to the public from 8:45 a.m. to 5:15 p.m. every day of the year except December 25. (The ticket booth closes at 4:45 p.m.) The park grounds are closed from midnight until 5:30 a.m.

Communities and Related Links
NPS Fort Marion
St. Augustine Visitor and Convention Bureau

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