About This Property. National monument, the Castillo de San Marcos, is the oldest masonry Fort in the United States and the only standing 17th century military construction. It is also one of two forts built of coquina, a soft limestone composed of broken shells. This native material gave the Spanish a special advantage.
http://www.floridashistoriccoast.com/things-do/castillo-de-san-marcos
Castillo de San Marcos. The Castillo de San Marcos is the oldest masonry fort in the continental United States (Castillo San Felipe del Morro in San Juan, Puerto Rico is older).
http://military.wikia.com/wiki/Castillo_de_San_Marcos
Coquina in Castillo de San Marcos, St. Augustine, Florida, U.S.A. Castillo de San Marcos was built of coquina, a limestone consisting almost entirely of shelly fossils. Most limestones consist of fossils or other carbonate grains held tight by hardened matrix or by crystals of calcite cement chemically precipitated between the grains.
http://www.gly.uga.edu/railsback/BS-SA.html
St. Augustine, Florida, holds the distinction of being the first permanent European settlement in the continental United States. Castillo de San Marcos, or Fort San Marcos, was built in 1695 by the Spanish colonial government to protect St. Augustine. It followed a series of wooden forts that had been built in response to French and then British pressure on Spain's hold on Florida.
http://www.gly.uga.edu/railsback/BS-SA.html
Search form. Castillo de San Marcos. St. Augustine's most historically significant structure is the Castillo de San Marcos, a fort constructed by the Spanish between 1672 and 1695.
http://staugustine.com/history/castillo-de-san-marcos
The oldest masonry fort in the continental United States, the Castillo de San Marcos is a large Spanish stone fortress built to protect and defend Spain's claims in the New World. It's a National Monument and, at over 315 years old, it's the oldest structure in St. Augustine.
https://www.visitstaugustine.com/thing-to-do/castillo-de-san-marcos
Florida was accepted as a state in 1845. The Castillo de San Marcos was also the stage for confrontations during the War of 1812, the Patriot Revolt, the Second Seminole War, and the Civil War (as US Fort Marion). It was used as a prison for American Indians during the late 1800s and played a minor role in the Spanish-American war, as a hold for deserters.
http://www.stfrancisinn.com/castillo-de-san-marcos/
In 1942 the original name, Castillo de San Marcos, was restored by an Act of Congress. The fort was declared a National Monument in 1924 and after 251 years of continuous military possession, the fort was deactivated in 1933 and the 20.48-acre (8.29 ha) site was turned over to the United States National Park Service.
http://military.wikia.com/wiki/Castillo_de_San_Marcos
The Monument site consists of 20.5 acres and includes a reconstructed section of the walled defense line surrounding the city of St. Augustine incorporating the original city gate. The Castillo de San Marcos' architecture and detail are distinctive and unique. It is the oldest masonry and only extant 17th century fort in North America. As such it is an excellent example of the bastion system of fortification.
https://www.nps.gov/casa/learn/historyculture/index.htm
As the oldest masonry fortress in the continental US and only surviving 17th century military construction in North America, the Castillo de San Marcos (Castle of St. Marks) is located on 21 acres on Matanzas Bay in the city of St. Augustine.
http://www.stfrancisinn.com/castillo-de-san-marcos/
who is castillo de san marcos
The Castillo de San Marcos is the oldest masonry fort in the continental United States.