Build your day

Black Diamond Mines Regional Preserve

Trails above ground and mining history below: a regional preserve with an underground visitor center and a separately booked Coal Mine Experience.

Leash in parking, developed and picnic areas and within 200 feet of entrances, or as posted; voice control always.

Check the district's notices for trail closures before going.

Gate hours are seasonal and change through the year; the district's park page lists the current schedule.

Clayton Community Park

A city park with ballfields, picnic areas and two play structures.

Lists a playground

Keep dogs leashed and clean up after them.

Sunrise to sunset

Notice: Closed Mondays and Tuesdays from October 12 through November 3, 2026, for pest management, according to the City of Clayton. The lower parking lot by the lower baseball field stays open for school traffic.

Clayton Dog Park

A fenced dog park supported by the City and the Clayton K-9 Coalition.

Off-leash here, the one exception to the city park leash rule; pick up after your dog.

Bring water for your dog and check park conditions before going.

Sunrise to sunset

Clayton Trail System

The citywide open-space trail network: paved creek routes and hill trails connecting neighborhoods, downtown and the regional parks.

About 27 miles of trail across roughly 515 acres, as the city describes the whole network; no single route is that long.

Hours not posted here. Check before you go.

Lydia Lane Park

A neighborhood park at the northeast end of Lydia Lane with picnic and play facilities.

Lists a playground

Keep dogs leashed and clean up after them.

Sunrise to sunset

Morgan Territory Regional Preserve

Sandstone hills, open ridges and views toward Mount Diablo, with hiking, designated riding trails and a reservable backpack camp.

Leash within 200 feet of entrances, in developed, parking and picnic areas, near livestock and where posted; voice control always.

Park 5am–10pm unless posted; the vehicle gate at the staging area runs 8am–7pm from September 6 to November 5, 2026, as published.

Mount Diablo State Park

The state park at Clayton's edge: canyon trails from Mitchell Canyon and Regency Drive, and a drive-up summit.

Pets are prohibited on trails and fire roads; trained service dogs are allowed on leash. Developed-area rules differ.

Check the park page for current closures, including fire closures, before going.

Plan on gates 8am to sunset.

North Valley Park

A neighborhood park on Keller Ridge Drive with a children's play structure.

Lists a playground

Keep dogs leashed and clean up after them.

Sunrise to sunset

The Grove

The downtown park: play features, picnic seating and reservable gathering spaces.

Lists a playground

Keep dogs leashed and clean up after them.

The splash pad is seasonal. Check with the city before planning around water play.

Sunrise to sunset

Westwood Park

A city neighborhood park reached from the ends of Haviland Place and Ohara Court.

Keep dogs leashed and clean up after them.

Sunrise to sunset

Mary Bowerman summit circuit

~0.7 mi loop, Easy

Starts at Lower Summit Parking Lot. Figures are the Mount Diablo Interpretive Association’s and approximate.

Pets are prohibited on trails and fire roads; trained service dogs are allowed on leash. Developed-area rules differ.

A drive-up outing at the summit, not a hike up from Clayton.

MDIA describes only the first third as accessible; the full circuit is not wheelchair accessible.

State park rules; approved astronomy programs may have specific after-hours arrangements.

Mitchell Canyon nature walk

~4 mi out and back, 500 ft gain, Easy

Starts at Mitchell Canyon Staging Area. Figures are the Mount Diablo Interpretive Association’s and approximate.

Pets are prohibited on trails and fire roads; trained service dogs are allowed on leash. Developed-area rules differ.

The distance is for MDIA's standard turnaround; the optional Globe Lily return is a separate variant.

Use the linked guide and current official map for navigation; this outline does not give turn-by-turn directions.

Park gate 8am to sunset.

Black Point loop

~4.8 mi loop, 1,190 ft gain, Moderate

Starts at Mitchell Canyon Staging Area. Figures are the Mount Diablo Interpretive Association’s and approximate.

Pets are prohibited on trails and fire roads; trained service dogs are allowed on leash. Developed-area rules differ.

Save Mount Diablo describes a different, roughly five-mile variant with a summit spur; follow the MDIA guide for this 4.8-mile route.

Use the linked guide and current official map for navigation; this outline does not give turn-by-turn directions.

Park gate 8am to sunset.

Donner Canyon–Falls loop from Regency

~5.1 mi loop, Moderate

Starts at Regency Drive Trailhead. Figures are the Save Mount Diablo’s and approximate.

Pets are prohibited on trails and fire roads; trained service dogs are allowed on leash. Developed-area rules differ.

Elevation gain is not listed in the guide.

The falls run in the wet season; don't count on flowing water.

Use the linked guide and current official map for navigation; this outline does not give turn-by-turn directions.

State park operating hours apply inside the boundary.

Eagle Peak loop from Mitchell Canyon

~8 mi loop, 3,101 ft gain, Demanding

Starts at Mitchell Canyon Staging Area. Figures are the Mount Diablo Interpretive Association’s and approximate.

Pets are prohibited on trails and fire roads; trained service dogs are allowed on leash. Developed-area rules differ.

MDIA warns that Eagle Peak Trail is a ridge trail, often only a few feet wide, with sharp drop-offs on each side.

Use the linked guide and current official map for navigation; this outline does not give turn-by-turn directions.

Park gate 8am to sunset.

Falls loop from Mitchell Canyon

~8 mi loop, 1,700 ft gain, Moderate

Starts at Mitchell Canyon Staging Area. Figures are the Mount Diablo Interpretive Association’s and approximate.

Pets are prohibited on trails and fire roads; trained service dogs are allowed on leash. Developed-area rules differ.

MDIA also lists a 7.6-mile variant; follow the linked guide for this 8-mile route.

Don't count on flowing waterfalls; check current conditions before planning around them.

Use the linked guide and current official map for navigation; this outline does not give turn-by-turn directions.

Park gate 8am to sunset.

Mitchell Canyon to Mount Diablo summit loop

~13 mi loop, 3,200 ft gain, Demanding

Starts at Mitchell Canyon Staging Area. Figures are the Mount Diablo Interpretive Association’s and approximate.

Pets are prohibited on trails and fire roads; trained service dogs are allowed on leash. Developed-area rules differ.

The summit rock is inside the visitor-center rotunda; interior access is not guaranteed.

Use the linked guide and current official map for navigation; this outline does not give turn-by-turn directions.

Park gate 8am to sunset.

Mitchell Canyon–Back Creek loop

~7 mi loop, 1,700 ft gain, Strenuous

Starts at Mitchell Canyon Staging Area. Figures are the Mount Diablo Interpretive Association’s and approximate.

Pets are prohibited on trails and fire roads; trained service dogs are allowed on leash. Developed-area rules differ.

The guide returns toward the trailhead from Coulter Pine; check the final connector against the current official map.

Use the linked guide and current official map for navigation; this outline does not give turn-by-turn directions.

Park gate 8am to sunset.

Mount Olympia loop via Middle Trail

~8 mi loop, 3,000 ft gain, Demanding

Starts at Regency Drive Trailhead. Figures are the Mount Diablo Interpretive Association’s and approximate.

Pets are prohibited on trails and fire roads; trained service dogs are allowed on leash. Developed-area rules differ.

MDIA lists no facilities at the Regency Drive trailhead and no dogs. Park on the street beyond the last houses, not in the permit-only areas in front of them.

The guide calls the climb toward Prospectors Gap and the descent from North Peak challenging, and keeps the Olympia Trail section off private property.

Use the linked guide and current official map for navigation; this outline does not give turn-by-turn directions.

State park operating hours apply inside the boundary.

Olofson Ridge

~5.3 mi out and back, 1,010 ft gain, Moderate

Starts at Mitchell Canyon Staging Area. Figures are the Mount Diablo Interpretive Association’s and approximate.

Pets are prohibited on trails and fire roads; trained service dogs are allowed on leash. Developed-area rules differ.

The guide gives a round-trip distance; the return retraces the way up.

Spring wildflowers the guide mentions are seasonal and not guaranteed.

Use the linked guide and current official map for navigation; this outline does not give turn-by-turn directions.

Park gate 8am to sunset.

Twin Peaks–Mitchell Rock loop

~4 mi loop, 1,100 ft gain, Moderate

Starts at Mitchell Canyon Staging Area. Figures are the Mount Diablo Interpretive Association’s and approximate.

Pets are prohibited on trails and fire roads; trained service dogs are allowed on leash. Developed-area rules differ.

MDIA warns of vertical drop-offs at Twin Peaks.

Use the linked guide and current official map for navigation; this outline does not give turn-by-turn directions.

Park gate 8am to sunset.