The Devil’s Punchbowl Natural Area is a Los Angeles County park, also within the San Gabriel Mountains National Monument and Angeles National Forest. It is located south of the Pearblossom Highway (CA Route 138), near the towns of Littlerock and Pearblossom.
Check out this outside link for more about this location: https://www.tripadvisor.com/Attraction_Review-g32866-d2225667-Reviews-Devil_s_Punchbowl_Natural_Area_and_Nature_Center-Pearblossom_California.html