Mount Diablo State Park has two entrances,
from where narrow roads lead up to
Mount Diablo Summit.
These roads are chains of serpentine curves with many
“SHARE THE ROAD” signs.
Both park roads meet at the
Junction Ranger Station,
from where the Summit Road continues
to the top.
Devil's Elbow is less than a mile
away from the summit.
There is limited parking space at the elbow's tip—next
to a trail kiosk.
A short trail leads uphill to the
Lower Summit Parking Lot,
the Mary Bowerman Trail and the
historic Summit Visitor Center.
The Devil's Elbow trailhead is also the
starting point of the North Peak Trail. This hiking and mountain biking trail
travels across south-facing slopes below the summit and
and continues in northeast direction toward