Battery Chamberlin today has a single 6-inch disappearing gun on display. The display gun was originally emplaced in Brooklyn, New York, at Battery Livingston in Fort Hamilton. The weapon was removed from Fort Hamilton and remounted in Battery Schofield at the United States Military Academy at West Point, New York. The gun was later given to the Smithsonian Institution. The Smithsonian eventually donated the weapon in 1977 to the Golden Gate Recreation Area. The gun was placed at Battery Chamberlin for public viewing. The gun is very similar to the original guns at Battery Chamberlin. This is the only remaining disappearing gun on the West Coast. There is a small museum located in one of Battery Chamberlin's ammunition magazines. The disappearing 6-inch gun at Battery Chamberlin is demonstrated to the public on the first full weekend of the month, from 11 am to 3 pm. Admission is free.
| NOW This 6-inch disappearing gun is usually covered with tarpaulins to protect it from the weather. This is the first Saturday of the month, and a docent has just removed the tarpaulins to display the gun to the public.
|THEN This picture was taken in 1915. It shows a test firing of one of the four original 6-inch disappearing guns installed at Battery Chamberlin.
|This Google Earth map shows the route taken through the Presidio on 3 November when I visited Battery Chamberlin and Battery Dynamite.
|Battery Chamberlin's disappearing 6-inch gun as seen on a foggy Saturday morning.
|Battery Chamberlin's disappearing 6-inch gun with a view of the gun's carriage.
|This is the muzzle of the six-inch gun. The following information is located on the muzzle: This 6-inch gun is serial #9. The gun weighs 20,845 pounds. It is a 1905 model, and the gun was manufactured in 1908 at Watervliet Arsenal, New York.
|The western portion of Battery Chamberlin. The mouth of San Francisco Bay is visible in the distance. The view is looking west.
|The eastern section of Battery Chamberlin. The Marin Headlands are visible in the distance. The view is looking north.
|A view from Baker Beach looking north.
|THEN. Two six-inch, non-disappearing guns were installed at Battery Chamberlin in 1920. The guns were operational through 1946. This picture was taken circa 1945.
|Another view from Baker Beach. The ocean water in the Bay Area is cold year-round because the currents are coming from the frigid arctic region.
|This is the 'Sand Ladder' trail. It ascends a sand dune from Baker Beach to Lincoln Boulevard.
The guns were declared obsolete in 1901, despite the various improvements made to the battery. The three guns were ordered salvaged In 1904. Once disarmed, the large complex at Battery Dynamite underwent many different uses over the course of many decades. The powerhouse continued to produce electricity until it was destroyed in the 1906 earthquake. A new powerhouse was later built in 1910 on the same site, and it provided electric power for the newly designated Fort Winfield Scott army post. By 1919, the artillery fire control switchboard and the Fort Winfield Scott telephone switchboard were also installed in the powerhouse.
|This is an aerial view of Battery Dynamite. The gun battery is located behind the enlisted men's barracks at the newly constructed Fort Winfield Scott. The view is looking east. Gun emplacement #1 is on the left. Visible are the earthen walls surrounding the three gun emplacements and the powerhouse, whose roof is visible behind the gun emplacements.
|This is a view of the three Battery Dynamite gun emplacements. The picture was taken before the installation of the earthen traverses and concrete walls, which were built around each gun emplacement. This image is circa 1897.
|This is Battery Dynamite gun emplacement #1. In 1911 a fire control station was constructed in gun emplacement #1. The fire control station was placed on top of the large round concrete mounts, installed at the base of the gun emplacement.
|This is Battery Dynamite gun emplacement #2. The entire area of Battery Dynamite is significantly overgrown with plant ground cover.
|This is gun emplacement #3. Note the depth of the gun emplacement and the lack of protection for a person from falling into the concrete gun emplacement.
|Here is a view of the two pillboxes built atop the two-story Harbor Defense Command Post / Harbor Entrance Control Post. This fortification was built during World War II, and it was accepted for service on 8 January 1944. The upper story contains two concrete and steel pillbox observation stations, as seen above, one for use by the Army and one for use by the Navy. This new structure was constructed in front of Battery Dynamite gun emplacement #2. The lower underground portion of the command post has sixteen rooms used to house both Army and Navy post personnel.
|This Google Earth map shows the GPS-tracked route I took through the Presidio on 5 November, a foggy Saturday morning. I first visited Battery Chamberlin and then went to the location of Nike Missile Launching Site SF-89L.
|This photograph shows one of the three missile launching pads at SF-89L. The houses in the distance are located in the Richmond District of San Francisco. The mountain on the far left is Mount Sutro. Sited at the summit of Mount Sutro at an elevation of 911 feet (278 meters) is radar tracking site SF-89C. It was designed to guide the missiles towards incoming enemy aircraft. The picture is circa 1958-1960.
|This is one of the three SF-89L hydraulic lifts used to raise the missiles from their underground storage area.
|This is the second of the three hydraulic lifts used to raise missiles from an underground storage area.
|To conclude this gallery of photographs, I have chosen this view of Nike Missile Launching Site SF-91L, which was located on the southeast side of Angel Island. The photo shows all three launching platforms, each of which can fire four missiles simultaneously, if necessary. The Berkeley Hills are across San Francisco Bay in the background. The view is looking east. The picture was taken sometime between 1955 and 1961.
A Panasonic GX7 camera body mounted with either an Olympus 17mm lens or an Olympus 9mm lens was used to take these photographs.
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