The Hundred Peaks Section (HPS) is a mountaineering society within the Angeles Chapter of the Sierra Club that serves to provide mountaineering activities for Sierra Club members in the southern Sierra Nevada, the Transverse Ranges, and the Peninsular Ranges, and to honor mountaineers who have summited peaks in those mountain ranges.
The section hosts summit hikes and scrambles in the Los Angeles and Inland Empire area three to four times per week.
It was started by outdoorsman Weldon Fairbanks Heald (1901-1967) in 1941, who wanted to summit 100 peaks in Southern California.
[1][self-published source] To become a member of the HPS, one must be a Sierra Club member and have climbed at least 25 peaks on the HPS List and subscribe to the section newsletter, The Lookout.
Peaks are added and taken off the list regularly, depending on availability of public access and interest.