John Trudeau led a hike on Saturday, October 11th up Black Mountain starting at Hidden Villa in Los Altos. It was about an 8-mile hike with about an 1,100 ft elevation gain. We took the Adobe Creek trail from Hidden Villa (1.0 mi) to intersect the Black Mountain trail, then took that to the first power pylon (1.6 mi). We returned to Hidden Villa via the Hostel trail (1.5 mi). The trail features some very nice woodlands and some of the best views of Silicon Valley of any trail in the Skyline Ridge area. The trail was mostly wooded, with no traffic noise and few trail intersections.