Stay on the trail and check for ticks on your clothing!

This is the smallest hummingbird found in the U.S. and a special visitor to Mount Diablo.

Flycatchers are fun to watch so find a good spot and be patient...

The best place to look for peregrines is Pine Canyon located at Castle Rock Recreational Park.

Think of quail as California chickens. They can be seen in chaparral areas.

The Hermit Warbler is on a short list of our migrating birds.

Western Bluebirds will always make you smile. Look for them in the woodlands.

Fun to spot one until you see what they do :-(

These large graceful butterflies can often be seen in Mitchell Canyon.

One of the Diggers with the largest, most active aggregations in Mount Diablo State Park is the Edwards Digger Bee.

These tiny bees can be seen on mariposa lilies or poppies.

You can learn a lot from footprints...

Check out our wildflower guide and see what's in bloom!

Falls Trail is accessed from Mitchell Canyon.

Like chapters in a book, the rocks of Mount Diablo tell a story of previous landscapes, climates, and life forms as well as epic
journeys of tectonic plates.

Globe Lilies can be seen in Mitchell Canyon.

Chamise is one of the classic plants of our California chaparral.

Look for something wavy in Mitchell Canyon.

Look for these near the summit.

Red and pink Clarkias dot the grasslands in spring and summer.

A butterfly favorite...

A golden bloom for the Golden State

Watch your step!

Like all snakes, rattlesnakes do not want to attack people.