Mount Allison

Mount Allison is a summit in the Diablo Range rising to approximately 2,664 feet, crowned with several broadcasting towers and a distinctive three-pronged antenna. The installation includes various technical structures built across the broad peak area.

The peak gained technical importance in 1998 when a broadcasting tower was installed to transmit Spanish television channels to regional audiences. This development marked the site's transformation into a major media transmission point.

The peak serves as a central broadcasting hub for Spanish language television networks, connecting diverse communities across the region through daily transmissions.

Access involves crossing private property, with the main approach near Mission Peak parking area. Visitors should expect limited facilities and restricted access due to the broadcasting operations on site.

Though higher than the adjacent Mission Peak, this summit attracts far fewer visitors because broadcasting operations and private property restrictions limit public access. This makes it one of the overlooked peaks in an otherwise popular hiking area.

Location: California

GPS coordinates: 37.49891,-121.87130

Latest update: December 11, 2025 11:04