This is an amazing place in the middle of the Ishi and Lassen National Forest. I've heard that the area has a long history of habitation of the Yahi Indians including Ishi the last Native American living in the wild. Long drive out there on pretty easy fire roads but you might need a high clearance vehicle and 4WD makes it easier. The drive is beautiful and the canyons are spectacular. The camp is at the base of a deep canyon along Mill Creek which I understand might get salmon during the right time of the year. This place really has a wonderful feel to it and I can see how the Yahi would have found this place to be a very pleasant place to live for a while. You will travel over four thousand foot elevation to get here but the valley is a little over two thousand foot so it is a good spring / fall type of a place. This area also holds one of California's largest deer herds during the winter so that adds to coolness factor. I understand that the "Black Rock" is the reminant of an old volcanic cynder cone and that this might have been a very spiritual location for the Yahi people. We are looking into putting together an group trip here this spring. Stay tuned to events for more as things develope. Here are a few helpful links including a map of it's location. Gasho. https://www.google.com/maps/d/u/0/edit?mid=1XfulJiCaAZT_gh-svflPa-SdA9uO4Kr3&ll=40.18393164975363%2C-121.71363742558788&z=19 https://en.wikipedia.org/wiki/Ishi https://www.millcreekconservancy.com/black-rock.html https://www.fs.usda.gov/Internet/FSE_DOCUMENTS/fsm9_034381.pdf