Mount Thayer, Mountain summit in Santa Clara County, California, US.
Mount Thayer rises to an elevation of 3,479 feet within the Santa Cruz Mountains, featuring steep slopes and a derelict building at its peak.
The mountain contains remnants of the former Almaden Air Force Station, which operated during the Cold War period as a military installation.
Located in Sierra Azul Open Space Preserve, Mount Thayer stands as a representation of California's military defense infrastructure from the twentieth century.
The summit remains closed to public access, with restricted areas surrounding the mountain peak and no maintained trails leading to the top.
Mount Thayer ranks as the second highest point in the Sierra Azul Open Space Preserve, positioned one mile west of Mount Umunhum.
Location: California
GPS coordinates: 37.16368,-121.91943
Latest update: March 17, 2025 20:00
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