Thanks to Jerry's suggestion here, I contacted Kaydee who mentioned that she went hiking with Terry in the Slow Travel Talk forums here. Follow that? Anyway, Kaydee sent me the link to Palm Springs Aerial Tramways (click on Things to Do for hiking information), which looks really cool. Lots of trails to choose from so now we need to remember to bring some warmer clothing. Very excited. Of course, Chris is already planning a morning hike followed by lunch in one of the restaurants up there.