The battery is named in honor of Captain Lowell A. Chamberlin, who had served with distinction in the Civil War.

[1] This Endicott-era battery was built in 1904 with four six-inch rifled guns mounted on disappearing carriages and was intended to protect underwater minefields laid outside the Golden Gate during the time of war.

These guns had a maximum range of 7.5 miles, and crews were trained to fire two rounds per minute.

Operation of the gun is open to the public, usually on the first full weekend of each month from 11 a.m. to 3 p.m. An underground magazine contains photos and small exhibits on the harbor defenses of San Francisco.

This article incorporates public domain material from websites or documents of the National Park Service.