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 …

Tip by

6.01 km

Wall Pt. Road

Highlight (Segment) • Trail

Wall Point Rd is one of the best fire roads for riding in the area. It has excellent views of Mt Diablo, Las Trampas, San Francisco, Mount Tamalpais, and the …

Tip by

7.99 km

China Wall

Highlight • Natural Monument

This sandstone stratum has eroded over time and created this natural wonder that looks very similar to the Great Wall of China.

Tip by

8.69 km

Briones to Mount Diablo Regional Trail

Highlight (Segment) • Trail

Gravel at its best. This road is a paradise for gravel bikers and novices on a mountain bike.

Tip by

10.5 km

Twin Ponds

Highlight • Lake

Two small ponds, mostly dry by summer, at the junction with Borges Ranch Trail. They fill again with the winter rains and last through spring and early summer. They are dry in late summer and fall.

Tip by

13.5 km

Costanoan Trail

Highlight (Segment) • Trail

This trail offers a spacious and easy-to-follow path. From here, you'll be able to enjoy a stunning view of Mt. Diablo and the rolling hills in the area. Keep in …

Tip by

14.9 km

End point

Parking

Way Types & Surfaces

Way Types

13.3 km

1.23 km

346 m

Surfaces

8.97 km

5.51 km

315 m

< 100 m

Elevation

Highest point (270 m)

Lowest point (120 m)

Weather

Today

Friday 19 December

17°C

11°C

63 %

Additional weather tips

Max wind speed: 24.0 km/h

to get more detailed weather forecasts along your route

This route was planned by komoot.

Nearby routes

Moderate

4.7

151

Flow Trail Loop — Crockett Hills Regional Park

02:30h

24.8km

530m

Easy

4.0

Joaquin Miller Park loop — Alameda County

01:15h

12.3km

300m

Moderate

4.7

Redtail and Brandon Skyline Trails loop — Anthony Chabot Regional Park

03:18h

34.4km

800m

Moderate

5.0

East Ridge Trail & Cinderella Trail loop — Joaquin Miller Park

02:02h

20.3km

460m

Moderate

4.9

Canyon Trail, East Trail, & West Trail loop — Redwood Regional Park

01:24h

13.8km

310m

Moderate

5.0

Tilden and Wildcat loop — Wildcat Canyon Regional Park

02:30h

28.8km

600m

Moderate

5.0

Nimitz Way loop — Alameda County

02:09h

26.2km

470m

Moderate

5.0

Wildcat Creek & Havey Canyon Trail loop — Wildcat Canyon Regional Park

02:06h

23.1km

580m

Moderate

3.0

Big Tress and Palos Colorados Trails loop — Joaquin Miller Park

00:51h

7.96km

250m

Moderate

4.5

Briones Crest & Seaborg Trail loop — Briones Regional Park

02:08h

20.8km

550m

Moderate

5.0

Sequoia Bayview Trail loop — Joaquin Miller Park

00:36h

6.32km

130m

Moderate

5.0

Nimitz, Conlon & Wildcat Creek Trail loop — Tilden Regional Park

01:25h

17.9km

340m

Diablo Foothills Regional Park loop — Walnut Creek

Old Borges Ranch

Mammoth Rock

Sandstone caves in Castle Rock formations

Wall Pt. Road

China Wall

Briones to Mount Diablo Regional Trail

Twin Ponds

Costanoan Trail

Nearby routes

We value your privacy ⛰️

We value your privacy ⛰️