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Hiking trails & Routes
United States
California
Contra Costa County

Bollinger Creek to Calaveras Ridge Trail Loop

Easy

4.9

(1254)

6,979

hikers

Bollinger Creek to Calaveras Ridge Trail Loop

01:53

6.13km

210m

Hiking

The Bollinger Creek to Calaveras Ridge Trail Loop is a 3.8 miles (6.1 km) hiking route rated easy, located in the Las Trampas Regional Wilderness. You will gain 679 feet (207 metres) over an estimated 1 hours and 52 minutes to complete this journey.

What to expect on Bollinger Creek…

Last updated: April 23, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Las Trampas Regional Wilderness

Waypoints

A

Start point

Parking

Get Directions

1

38 m

Bollinger Canyon Trailhead

Highlight • Trail

This trailhead is an excellent staging area centrally located within the Park, making it a great starting or resting point for multiple hike variations. There is plenty of parking, restrooms …

Tip by

2

2.38 km

Las Trampas Ridge

Highlight • Viewpoint

From this ridge you embrace quite a few points of view. Starting with the valleys of Ignacio, San Ramon and Amador.

Further on, Mount Diablo stands out.

Tip by

B

6.13 km

End point

Parking

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Way Types & Surfaces

Way Types

4.94 km

1.05 km

125 m

Surfaces

5.92 km

129 m

< 100 m

< 100 m

< 100 m

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Elevation

Elevation

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

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Weather

Powered by Foreca

Today

Friday 24 July

31°C

14°C

0 %

Additional weather tips

Max wind speed: 20.0 km/h

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Frequently Asked Questions

Where can I park to access the trail?

The primary access point for this loop is the Bollinger Canyon Staging Area. You'll find restrooms and drinking water facilities available there.

Is this trail dog-friendly?

The Las Trampas Regional Wilderness generally allows dogs, but they must be kept on a leash. Always check local signage for specific regulations along the route.

What is the best time of year to hike this loop?

Spring is particularly beautiful, with buttercups potentially blooming in the meadows. However, the trail offers diverse scenery year-round. Be aware that creek-side areas can become very muddy after rainfall, especially during wetter months.

Are there any permits or entrance fees for the Las Trampas Regional Wilderness?

Generally, there are no entrance fees or permits required for day-use hiking in the Las Trampas Regional Wilderness.

What is the terrain like on this loop?

The trail features a varied mix of singletrack paths, grassy slopes, and dirt roads. Along Bollinger Creek, you'll find shaded riparian areas with oak, laurel, and maple trees. As you ascend towards Las Trampas Ridge, the landscape opens up to expansive meadows. Be mindful of uneven textures from grazing cattle and potential poison oak in some areas.

Is this a good trail for beginners or families?

While some sections of the Bollinger Creek Loop are considered easy and suitable for families, the broader loop encompassing Las Trampas Ridge and Calaveras Ridge involves some strenuous parts and requires good fitness. The overall route is rated 'easy' on komoot, but be prepared for varied conditions.

What notable features or viewpoints will I encounter?

A significant highlight is the panoramic views from Las Trampas Ridge, offering expansive vistas of surrounding valleys and landmarks like Mount Diablo. You'll also pass the Bollinger Canyon Trailhead, which serves as a convenient starting point.

What kind of nature and wildlife can I expect to see?

The wilderness area is rich in biodiversity. Along Bollinger Creek, you'll find lush riparian vegetation. In the open meadows, look for diverse undergrowth. Keep an eye out for various wildlife that inhabit the area, offering a sense of escape from urban life.

How do trail conditions change after rain?

After rainfall, the creek-side sections along Bollinger Creek can become very muddy and challenging. It's advisable to wear appropriate waterproof footwear during wet conditions to navigate these uneven and potentially slippery areas.

Are there restrooms or water facilities available?

Yes, restrooms and drinking water are available at the Bollinger Canyon Staging Area, which is the primary access point for this loop.

Does this route connect with other trails?

Yes, the route utilizes sections of several trails within the regional wilderness, including the Las Trampas Ridge Trail, Las Trampas Ridge & Calaveras Ridge Trail, and the Bollinger Creek Loop Trail. This interconnected system allows for extended exploration if you wish.

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4.6

119

Stream, Mill and French Loop

02:13h

7.37km

240m

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