I spent so much time in the mountains there. Did a ton of fishing in the Angeles and San Bernadino Nat Forests. Helped found a group called FRVC
https://frvc.org/ in early 1990s, I remember writing the first Volunteer Handbook. Me and and my wife wearing the Forest Service gear, hiking the streams, pulling out bags of trash. Damn we were fit then. I've been scrolling around Google Maps looking for my old fishing place.