One of the lesser-known pursuits on public lands in California is rockhounding ... most visited sites within Mojave Trails are the Cady Mountains, east of Barstow, and the Marble Mountain Fossil ...

Linda Castro, left, assistant policy director of CalWild, with her dog Cash, and Gregor Losson, an advocate for rock and mineral collectors, study a specimen at Cady Mountains in Mojave Trails ...