Welcome to the Conservancy

The Umunhum Conservancy is a non-profit corporation dedicated to the preservation and restoration of Mt. Umunhum and its historic Radar Tower.

The historic Radar Tower atop Mt. Umunhum will be demolished unless the Conservancy raises funds to preserve it.

Mt. Umunhum and the Radar Tower are owned by the Mid-Peninsula Regional Open Space District (MROSD).  MROSD is in the process of opening the summit of Mt. Umunhum to the public.  However, MROSD does not spend its funds on historic preservation.  Unless the Conservancy raises funds to save it, the Radar Tower will be demolished.

Fourth of July

The Conservancy will have a booth at the 4th of July Fun Festival and Fireworks at Almaden Lake Park! We’ll be there from 2pm until 10pm.  Come say “hi”!

New Dates!

Come learn about the history of this fascinating site, see actual artifacts, and enjoy a slide show of amazing historic photos of the radar station when it was in operation between 1958 and 1980. Presented by Basim Jaber (Historian/Archivist and founder of the USAF 682nd Radar Squadron Veterans Association, and member of the Umunhum Conservancy Board).

For presentation dates and registration information, click here!

Historic Preservation Update

Thank you to everyone who came to the April 16th meeting of the Santa Clara County Historical Heritage Commission and asked them to put the Tower atop Mt. Umunhum on the County’s Heritage Resource Inventory! The Commission was very impressed with your input.  They will go through several additional steps before making a recommendation; we will let you know when the next meeting on the topic is. 

If the Tower is officially declared “historic” then it will be more difficult to demolish.

Support from Local Leaders

Numerous local political figures and other community leaders support preserving the Radar Tower atop Mt. Umunhum.  Check out the list, and thank them for their support!


Thanks to our friends at KMVT, here is an interesting interview with Conservancy Director Basim Jaber about the history of Mt. Umunhum and the Conservancy!