On 21-May-2024, Gordon Carbonetti led a group of three hikers to the summit of Mt. Umunhum along a portion of the Bay Area Ridge Trail. The roundtrip hike covered 9 miles with an elevation game of 1200 ft. The highlight of the hike was reaching the old Air Force surveillance building on the summit. Three other hikers (Bob Bogdanoff, Bert Tang, Monona Tang) followed separately a few hours later on the same hike.