B Battery didn't join its parent unit there until 25 Jun 63. They were on Johnston Island in the Pacific test firing nuclear warheads in Operation Dominic.
B Battery originally located adjacent to A Battery near the entrance to Everglades National Park. In June 1965, B Battery relocated to a permenant site on near where Card Sound Road intersects with SR 905 in North Key Largo.
In 1980, B Battery was briefly used to house Cuban refugees during the Mariel boat lift. The administration area is overgrown with Strangler Figs and other prolific vegetation and is the property of the Florida State Park system.
The launch area is the property of the US Fish and Wildlife and is designated as the Crocodile Lake Preserve. Two of the section barns were used to store boats and vehicles. The third section bar was provided as a storage facility for contraband seized by the US Custom.
A radio tower was installed just behind the section barn as a US Customs listening post.
The section barns have been razed.
