Historic Posts, Camps, Stations and Airfields
San Francisco Defense Area SF-89, Presidio of San Francisco/Mount Sutro
 
 
 
 
 
Integrated Fire Control Area (SF-89C) History by Daniel Sebby, Military Historian, California Military Department
 
Prior to Army use, the Site was open space under the control of the Regents of the University of California.

On 7 June 1955, the San Francisco District of the USACE acquired 6.106 acres of land atop Mount Sutro from the Regents of the University of California for the purpose of placing an Integrated Fire Control site in support of San Francisco Defense Area Site SF-89 (also known as Battery Caulfield). This tract of land was part of the personal donation that then San Francisco Mayor Adolph Sutro made in 1895 to the "Affiliated Colleges" of the University of California for the purposes of establishing a medical school. The Site was and continues to be adjacent to the Married Student Housing for the UCSF.

In addition to the portion of the Site covered by the lease with the Regents of the University of California, there was a license relationship with the Kirkham Heights Company allowed the US Army Corps of Enginners 0.114 acres for a right-of-way for electrical and sewage lines.

With the initial construction of the Site completed soon after acquisition, the Fire Control Platoon of Battery C, 740th Antiaircraft Artillery Missile Battalion occupied the Site. Battery Caulfield was a Nike-Ajax air defense missile battery located on the Fort Winfield Scott portion of the Presidio of San Francisco. In September of 1958, the U.S. Army implemented the Combat Arms Regimental System and the garrison of SF-89 became Battery C, 4th Missile Battalion, 61st Artillery Regiment. This unit was replaced in July 1959 by the California Army National Guard's Battery B, 2nd Missile Battalion, 250th Artillery Regiment (1st California). Although manned by Army National Guardsmen, the installation remained a U.S. Army installation.

On 29 October 1959, 1.14 acres of land was returned, by means of supplementing the original lease, to the Regents of the University of California for the purpose of building a water tank for UCSF. On 11 January 1963, SF-89C was deactivated. Soon thereafter, the control of the properties was returned to the original owners. In accordance with the lease and license, the USACE transferred control without the involvement of the General Services Administration.

Today, the Site is within the San Francisco Rotary Restoration Meadow that was created in a joint effort by UCSF and the Rotary Club to commemorate the 100th anniversary of Rotary International (1905 to 2005) and the 60th anniversary of the formation of the United Nations in San Francisco (1945 to 2005). Other than the access road and the former Sentry Station (Building S-400) at the bottom of that road, no visible remains of the U.S. Army's occupation are present at the Site.

Source: Book, Rings of Supersonic Steel; Real Estate Records, Post Engineer, Presidio of San Francisco, Golden Gate National Recreation Area Archives.
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Updated 8 February 2016