Battery AMTB - Gaffey Bulge

 (1943-1946) - Battery AMTB - Gaffey Bulge was a reinforced concrete World War II 90mm gun battery on Fort MacArthur, Los Angeles County, California. AMTB stands for Anti Motor Torpedo Boat. Battery construction started Jun 1943, was completed Oct 1943 and transferred to the Coast Artillery for use 4 May 1944. Deactivated in 1946.

Current Status
No gun or mounts in place but the base of the mounts can still be seen. The Gaffey Bulge is a semicircular protrusion in Gaffey Street that allows Gaffey Street to go around a hill. Mount base #2 is covered with a circular platform that once contained a tourist telescope.

Sources:

Links: 
 * Fort MacArthur Museum