I determined that this morning, I'd find out how to get to Briones on the Briones Mt Diablo Trail. I did manage to find it, but it was a bit farther than I thought, and I had to turn around once I found the trailhead. On the way, I did manage to get better pictures of the cows and calves than before. And of course I took a picture at the trailhead into Briones Park.