Mount Diablo, is the Bay Area second-highest peak at 1173m (3849ft). The challenging climb features constantly fluctuating gradients averaging 8%, with tough sections up to 18% and a brutal 23% …
A side peak in Mount Diablo State Park slightly west of the main summit, Eagle Peak with 722m elevation provides great views of Bay Area's most visible volcano peak and …
At the foot of Mount Wanda and Mount Helen, a statue of John Muir stands surrounded by a young but already tall redwoods grove. Just a mile south from his …
Water, wind, and calcite erosion in per-volcanic sandstone formation.
Slightly acidic rainwater seeps into the sandstone during winter rains and dissolves some of the calcite. Warm and dry days cause …
This is a fantastic rocky outcrop just beneath Mount Diablo's main summit. It is worth scrambling to the top to get more of the incredible views this area offers.