Back Bay National Wildlife Refuge in southeastern Virginia is located in the independent city of Virginia Beach. Established in 1938 in an isolated portion of the former Princess Anne County, it is managed by the U.S. Fish & Wildlife Service. The administrative office is located on Sandbridge Road at Sigma between Lago Mar and Sandbridge Beach. The Visitor Contact Center is accessed via Sandpiper Road from the Sandbridge area of Virginia Beach, which is the southernmost area of development on the Atlantic Coast of Virginia.