During World War II, the U.S. Navy took over a large area in the north-western portion of York County, which was developed as Camp Peary. All residents of the entire towns of Bigler's Mill and nearby Magruder were removed, and many of the areas were redeveloped.
Camp Peary later became well known as "The Farm," a training facility for the U.S. Central Intelligence Agency (CIA). Access to the base is restricted. The 100-acre (400,000 m²) Biglers Millpond occupies the site adjacent to the York River.