Waterman Mountain, at 8,041 feet (2,451 m), is a prominent peak in the San Gabriel Mountains of Los Angeles County, California in the Angeles National Forest. The summit of Waterman Mountain marks the northern boundary of the San Gabriel Wilderness and it is the highest point in the wilderness. Several small ski areas are located on its north side: Mount Waterman, Kratka Ridge, and Buckhorn Ski Club. The Buckhorn and Cooper campgrounds are below the Angeles Crest Highway. During Winter and early spring this mountain is packed with snow. Snow may even be found in September lying on Waterman mountain. Spring brings a lot of rain and makes Waterman covered in wildflowers. Summers are hot and dry. The climate here is Highlands/Mediterranean. Partly due to this climate, mixed conifer forests are found on Waterman Mountain, Fauna is greatly influenced because of this climate.
Robert B. Waterman was a pioneer mountain man and a ranger in the San Gabriel Forest Reserve. He, with with his wife Liz and their friend Perry Switzer, completed a three week journey from La Cañada to the Antelope Valley and back in May 1889. With this accomplishment, Liz became the first non-indigenous woman known to have crossed the San Gabriel Mountains. It is said that she placed a cairn on this summit and it was christened Lady Waterman's Peak. However, with prevailing attitudes toward the "weaker sex" the name was not accepted and it became known as simply Waterman Mountain.