Most people who make it to the top of Mt Diablo State Park look out from the parking lot or observation platform or just tour the museum. Few venture a quarter mile down the trail to Devils Pulpit, a rocky outcropping perched on the hillside, with wide open views of the snowy Sierras and the full expanse of the Diablo Range laid out to the south. A little clambering and you can get away from all the crowds…