Routes

Planner

Features

Updates

App

Login or Signup

Get the App

Login or Signup

Routes
Hiking trails & Routes
United States
California
San Mateo County

Borel Hill and Ancient Oaks Loop

Easy

3.0

(13)

88

hikers

Borel Hill and Ancient Oaks Loop

01:45

5.83km

190m

Hiking

Hike the easy 3.6-mile Borel Hill and Ancient Oaks Loop in Russian Ridge Open Space Preserve for panoramic views and ancient oaks.

Last updated: February 26, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Russian Ridge Open Space Preserve

Waypoints

A

Start point

Parking

Get Directions

1

3.14 km

Charquin Trail

Highlight (Segment) • Trail

This lovely trail runs below the Ridge Trail and takes you on a pleasant trek through the woods before emerging along the hillsides with fantastic views of Mindego Hill and …

Tip by

2

3.65 km

Ridge Trail

Highlight (Segment) • Trail

This beautiful trail takes you along the rolling green hills of the preserve, with views of Mount Diablo, Black Mountain, East Bay peaks, Mindego Hill, and the San Gregorio Watershed. …

Tip by

3

4.38 km

Borel Hill

Highlight • Summit

Borel Hill is the highest point in the preserve at 2,575 feet (784 meters), with panoramic views of the Pacific Ocean to the west and across the San Francisco Bay …

Tip by

B

5.83 km

End point

Parking

Loading

Way Types & Surfaces

Way Types

3.53 km

1.19 km

1.06 km

< 100 m

Surfaces

2.53 km

2.03 km

1.26 km

Sign up to see more specific route details

Sign up for free

Elevation

Elevation

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

Highest point (770 m)

Lowest point (660 m)

Sign up to see more specific route details

Sign up for free

Weather

Powered by Foreca

Today

Wednesday 15 July

32°C

14°C

0 %

Additional weather tips

Max wind speed: 10.0 km/h

to get more detailed weather forecasts along your route

Comments

guide_signup

Want to know more?

Sign up for a free komoot account to join the conversation.

Sign up for free

This route was planned by komoot.

Save

Edit route

Download GPX

Move start point

Print

Share

Embed on a website

Report an Issue

Report restricted access

Frequently Asked Questions

Where can I park for the Borel Hill and Ancient Oaks Loop?

Parking for the Borel Hill and Ancient Oaks Loop is available at the Russian Ridge Open Space Preserve. Specific parking areas are typically located near the main trailheads within the preserve. It's advisable to arrive early, especially on weekends, as parking lots can fill up quickly.

Is the Borel Hill and Ancient Oaks Loop dog-friendly?

Dogs are generally allowed on trails within the Russian Ridge Open Space Preserve, including the Borel Hill and Ancient Oaks Loop. However, they must be kept on a leash at all times to protect wildlife and ensure the safety of other hikers. Always check the preserve's official rules before your visit.

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

The best time to hike the Borel Hill and Ancient Oaks Loop is in the spring, particularly around May, when the grassy slopes and meadows come alive with spectacular wildflower blooms. Fall also offers pleasant hiking weather and clear views. While accessible year-round, summers can be warm and exposed, and winters may bring muddy conditions.

Are there any permits or entrance fees required for the Russian Ridge Open Space Preserve?

No, there are typically no permits or entrance fees required to access the trails within the Russian Ridge Open Space Preserve, including the Borel Hill and Ancient Oaks Loop. It is free to enjoy the preserve's natural beauty.

What is the terrain like on the Borel Hill and Ancient Oaks Loop?

The loop features diverse terrain, including rolling grassy hillsides, open meadows, and sections winding through dense oak and bay woodlands. You'll encounter both single-track paths and wider service roads, with surfaces primarily composed of dirt and some gravel. Some sections are exposed, while others provide shade under ancient oaks.

What are the main highlights or viewpoints along the trail?

The trail offers several notable highlights. From the summit of Borel Hill, you'll be rewarded with 360-degree panoramic views stretching from the Pacific Ocean to the San Francisco Bay. You'll also pass through groves of monumental, centuries-old oak trees, and in spring, enjoy spectacular wildflower displays. The Charquin Trail and Ridge Trail sections also offer scenic vistas.

What kind of wildlife can I expect to see on the trail?

Deer sightings are common along the route, and various bird species can be observed throughout the preserve. Keep an eye out for other small mammals and reptiles that inhabit the diverse ecosystems of the Russian Ridge Open Space Preserve.

How long does it typically take to complete the Borel Hill and Ancient Oaks Loop?

The Borel Hill and Ancient Oaks Loop is approximately 5.8 kilometers (3.6 miles) long and typically takes around 1 hour and 45 minutes to 2 hours to complete, depending on your pace and how often you stop to enjoy the views.

Does the Borel Hill and Ancient Oaks Loop connect with other trails?

Yes, the loop connects to other trails within the Russian Ridge Open Space Preserve, offering options for longer or shorter hikes. The route also passes through sections of the Charquin Trail, Ridge Trail, and Ancient Oaks Trail, among others.

Is the Borel Hill and Ancient Oaks Loop suitable for families?

The trail is considered moderately challenging, but its diverse scenery and manageable length make it suitable for families with active children. There are also cut-off points available for those who wish to shorten the route, making it adaptable for different fitness levels.

Are there options to shorten the Borel Hill and Ancient Oaks Loop?

Yes, for those looking for a shorter hike, there are several cut-off points and intersecting trails within the Russian Ridge Open Space Preserve that allow you to modify the length of your route. Consult a trail map to plan your preferred distance.

Nearby routes

Moderate

4.9

323

Hamms Gulch to Spring Ridge Loop

03:10h

10.3km

390m

Explore
RoutesRoute plannerFeaturesHikesMTB TrailsRoad cycling routesBikepackingSitemap
Download the app
Follow Us on Socials

© komoot GmbH

Privacy Policy