Tarantulas like to wander in twilight hours. Look for them in early fall.

Woodpeckers are not shy and are often busy in the fall.

Poorwills can be seen in the evening hours.

Busy, busy, busy!

You don't want to get stung by this one!

Whether looking toward Mount Diablo or toward the western horizon, the sunsets in fall never disappoint.

(Chamise Seedheads)

The coyote's high-pitched, yodel-like yapping can frequently be heard at night.

Acorns are a woodpecker favorite!

Leaves of 3, leave me be...

Snakes live here too!

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.

Look for a frog chorus at Coulter Pond

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

Think of quail as a California version of chickens. They can be seen in riparian and chaparral areas.

Shown in the photo is a Cooper's Hawk, but the Red-tailed Hawk is often seen and heard.

Poorwills are best seen in the evening hours.

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

Ewwww..Earwigs are often more noticeable during spring and early summer, especially after wet winters.

Enjoy the photo and hope you don't see them around your house.

You can see dragonflies near the summit and along the creeks throughout the park.

We think moths are misunderstood. What do you think? (we hope you see one!)

Check out our Butterfly Guide!

Reserve your spot!

Our Bay Area fog provides relief from the valley heat. Take a drive to summit and be surprised.

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

Buckeyes are both beautiful and pathetic depending on when you see them.

Soap root blooms in the evening and a special treat.

Follow your eye and your nose...

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

Remember to take only photos. Watch our webinar about mushrooms on the mountain.

The orange tipped wings are fun to see!

Lovely...

Look for these bees on manzanita.

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The best viewing is after a winter storm with strong north winds.

The Falls trail is accessed at Mitchell Canyon

Research road and weather conditions prior to traveling. For updated road conditions visit road.dot.ca.gov OR call 1800-427-ROAD

Look for checker lilies at Mitchell Canyon

Look for manzanita at Rock City located on South Gate Road

Silk Tassel blooms in late winter.

Toyon and its berries are also known as Christmas Holly.

A striking bloom that offers an opening threshold to wildflower season

Look for currant berries in the spring (unless the birds get them first!)