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Mountain biking trails

Twin Ponds – Old Borges Ranch loop from Walnut Creek

Routes

Mountain biking trails

Twin Ponds – Old Borges Ranch loop from Walnut Creek

Moderate

3.2

(10)

riders

Twin Ponds – Old Borges Ranch loop from Walnut Creek

02:09

24.6km

430m

Mountain biking

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: March 29, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Mount Diablo State Park

Waypoints

Start point

Bus stop

Get Directions

4.32 km

Shell Ridge Open Space

Nature Reserve

6.43 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

6.83 km

Foothills Trail and Borges Ranch Trail junction

Highlight • Trail

At this intersection you either decide to continue on Borges Ranch Trail or on Foothills Trail – both are great gravel roads.

Tip by

7.69 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

10.8 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

12.6 km

Pine Pond

Lake

14.3 km

Sandstone caves in Castle Rock formations

Highlight • Cave

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

14.4 km

Mammoth Rock

Highlight • Natural Monument

Pine Valley opens up for great views of the tall carst rock outcrops.

Tip by

15.1 km

Sandstone Formations With Holes, Diablo Foothills Regional Park

Highlight • Natural Monument

The rocks in that area are made of sandstone. During our winter rains, acidic rain water seeps into and sits in the rocks. The next summer, the dry heat pulls …

Tip by

16.8 km

Old Borges Ranch

Highlight • Historical Site

Still operating, mostly as an open air farming museum.

Tip by

24.6 km

End point

Bus stop

Way Types & Surfaces

Way Types

16.7 km

5.04 km

2.73 km

< 100 m

Surfaces

8.78 km

7.83 km

6.89 km

989 m

< 100 m

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Weather

Today

Wednesday 20 May

31°C

13°C

0 %

Additional weather tips

Max wind speed: 15.0 km/h

to get more detailed weather forecasts along your route

Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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Twin Ponds – Old Borges Ranch loop from Walnut Creek

Twin Ponds

Foothills Trail and Borges Ranch Trail junction

Briones to Mount Diablo Regional Trail

Wall Pt. Road

Sandstone caves in Castle Rock formations

Mammoth Rock

Sandstone Formations With Holes, Diablo Foothills Regional Park

Old Borges Ranch

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