I've seen those things up there many times, like you said, goin' down 5. Always wondered about them.
These rocks are the reason I love Summitpost. Where else do you go to get this kind of info on such remote, unknown stuff? The Diablo Range continues to surprise and impress. I hope you come up with more from this area!
In the summer, the asbestos-filled soil is dusty, so it can blow around in the air, making it easier to breathe in. The soil is much more wet and compact in the winter and spring.
How was the current closure conditions? I've been out to the Griwald hill and then into New Idria and there were closure signs for travel into BLM Clear Creek area. I've always wanted to do the drive through to Colinga road
There was a sign warning of asbestos in the soil, but nothing I could see about any closure. No no trespassing signs, no locked gates, etc.
WHEN YOU WENT OUT TO THE ROCKS IN DEC. DID YOU COME IN FROM THE NORTH OR THE SOUTH?
Drove to the TH from the north. I don't know how to get there from the south.