San Pedro Bastion
Distant view of the San Pedro (St. Peter) Bastion at the Castillo de San Marcos. The Castillo boasted four bastions. The bastions were filled with rubble and sand. Cannon were mounted on the top in such a way that anyone approaching the fort would be caught in the crossfire of two adjacent bastions.
Florida: A Social Studies Resource for Students and Teachers
Produced by the Florida Center for Instructional
College of Education, University of South Florida © 2002.