The National Park System, of which Castillo de San Marcos National Monument is a unit, is dedicated to conserving the scenic, scientific, and historic heritage of the United States for the benefit and enjoyment of its people.
UNITED STATES DEPARTMENT OF THE INTERIOR
Stewart L. Udall, Secretary
NATIONAL PARK SERVICE
Conrad L. Wirth, Director
For sale by the Superintendent of Documents,
U.S. Government Printing Office
Washington 25. D.C. Price 20 cents
THE BUILDING OF
Castillo de
San Marcos
by
ALBERT C. MANUCY
Historian
Castillo de San Marcos National Monument
National Park Service Interpretive Series
History No. 1