Oak Glen Preserve Hiking Guide

Nestled in the foothills of the San Bernardino Mountains, Oak Glen Preserve is a 2,189-acre protected area featuring oak woodlands, lush meadows, and scenic hiking trails.
Its proximity to apple orchards and the charming town of Oak Glen makes it a popular spot year-round, especially in the fall during apple-picking season. Whether you’re an avid hiker, nature lover, or photographer, Oak Glen Preserve has something for everyone.
Here’s a guide to exploring one of Southern California’s natural gems.
Trail Overview
Oak Glen Preserve has a network of well-maintained trails that meander through a variety of landscapes, from shaded oak groves to open meadows. With routes suitable for both casual hikers and those looking for more of a challenge, it’s a versatile destination for outdoor exploration. The main loop trail is 2 miles long, and the preserve has 4.8 miles of trails in total.
Oak Glen Preserve Trail Map. Download a printable PDF or explore the interactive Google Map.

Biking at Oak Glen Preserve
While Oak Glen Preserve is primarily for hiking, some nearby trails, particularly in the surrounding Oak Glen area, are popular with mountain bikers. However, biking is not permitted on the preserve’s main trails. For those interested, nearby options like Wildwood Canyon State Park offer multi-use trails with varying difficulty levels.
Wildlife and Natural Beauty
Oak Glen Preserve is home to many wildlife, including mule deer, bobcats, and various birds like hawks and woodpeckers. The preserve’s rich biodiversity and seasonal beauty make it a popular destination for photographers and nature lovers. During warmer months, look for rattlesnakes, and remember to respect the wildlife by keeping a safe distance.
Getting There
Oak Glen Preserve is located just off Oak Glen Road, with the Los Rios Ranchos trailhead providing the most popular access point. Parking is free, and the preserve is open year-round. Autumn is especially busy due to the apple season, so plan accordingly if you visit during that time.
Tips for Visiting
- Best Time to Visit: Oak Glen Preserve is beautiful year-round, but spring and fall offer the best conditions for hiking, with cooler weather and vibrant wildflower or autumn foliage displays.
- Bring Water: There are no water stations within the preserve, so be sure to bring enough water, especially during the hotter months.
- Respect the Preserve: As a protected area, it’s important to stay on designated trails, pack out your trash, and respect the local flora and fauna.
Conclusion
Oak Glen Preserve is an excellent destination for those seeking a serene outdoor escape in Southern California. Whether you’re after a leisurely stroll through oak woodlands or a moderate hike with sweeping mountain views, this preserve offers a rewarding experience for hikers of all skill levels.