Highlight • Lake
Road cycling
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Lake Gregory is a picturesque man-made reservoir nestled within the cool cedar and pine forests of the San Bernardino National Forest. Located in the San Bernardino Mountains of Southern California, adjacent to the charming mountain community of Crestline, this lake sits at an elevation of approximately 1386 meters (4,545 feet). Originally known as Houston Flat, the lake was formed as a Works Progress Administration (WPA) project in the late 1930s, transforming the landscape into a popular recreational hub.
What draws visitors to Lake Gregory is its refreshing mountain atmosphere and diverse recreational offerings. Many appreciate the opportunity to escape the heat of the valleys, enjoying the tranquil setting and the abundance of water activities. The lake is particularly cherished by families for its dedicated swim beach, water slides, and the popular inflatable water park, providing endless fun for all ages. The scenic 2.7-mile fitness trail encircling the lake is also a favorite for leisurely strolls and enjoying the natural beauty.
Before heading out, it's helpful to know that Lake Gregory Regional Park offers various amenities, including picnic areas and rental options for paddleboards, kayaks, and pedal boats. While private power boats are not permitted, rowboats can be equipped with electric trolling motors. The lake is regularly stocked with trout, making it a popular fishing destination, though a California state fishing license and county fee are required. Parking is available at the regional park, and it can get busy, especially during peak summer weekends.
The best time to visit Lake Gregory for water activities and enjoying the full park experience is typically from late spring through early fall, when the weather is warm and all facilities are open. Beyond swimming and boating, the lake offers excellent opportunities for hiking, with the 2.7-mile loop trail around the lake providing an accessible option for all skill levels. Nearby, more adventurous hikers can explore trails like the Heart Rock/Seeley Creek Trail, which leads to a scenic waterfall.
For those looking to explore the area on foot, the Lake Gregory lake hiking difficulty and duration of the loop trail is considered easy, taking most walkers about an hour to complete at a relaxed pace. This well-maintained path offers continuous views of the water and surrounding forest, making it a pleasant experience for a casual walk or a brisk jog. The terrain is generally flat, making it suitable for a wide range of visitors.
Visitors often highlight the vibrant atmosphere during summer, especially around the Fourth of July when the park hosts celebrations and fireworks. The cool mountain air, the sight of children playing in the splash pad, and the serene moments spent fishing on the south shore are frequently mentioned as standout experiences. The surrounding cedar and pine forests provide a beautiful backdrop, enhancing the sense of a true mountain escape.
Whether you're interested in a relaxing day by the water, an invigorating hike, or family-friendly activities, Lake Gregory offers a variety of options. You can discover numerous routes for walking, cycling, and trail running around the lake and in the wider San Bernardino National Forest. Explore the possibilities and plan your adventure with komoot to make the most of your visit to this inviting mountain lake.
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July 23, 2024
Road cycling

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Nearby routes
Best routes near Lake Gregory

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Elevation 1,390 m
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Lake Gregory is conveniently located less than two hours' drive from many major Southern California cities, making it an accessible mountain escape for a day trip or a weekend getaway.
The 2.7-mile loop trail around Lake Gregory is popular and can be busy, especially on weekends. For a potentially less crowded and more adventurous experience, consider exploring nearby trails such as the Heart Rock/Seeley Creek Trail, which leads to a scenic waterfall.
Lake Gregory Regional Park does have a designated dog park. However, specific rules regarding where dogs are permitted on trails and in other areas of the park apply. It's best to check the official San Bernardino County Parks website for the most current regulations regarding dog access to ensure a pleasant visit for everyone.
The 2.7-mile fitness trail encircling Lake Gregory is generally flat and well-maintained, making it suitable for a wide range of visitors. While specific accessibility information for all facilities should be verified with the park, the main loop trail offers a relatively accessible option for enjoying the lake's scenery.
Private vessels and power boats are generally not allowed on Lake Gregory. However, rowboats, paddleboards, pedal-powered "water trikes," and paddle boats are available for rent. You can bring your own electric trolling motor to affix to a rented rowboat.
Lake Gregory is a man-made reservoir. Its construction began in 1937 under a Works Progress Administration (WPA) grant to dam the east and west forks of Houston Creek. The project was completed in 1939, and an urban legend claims that construction equipment left on the lake bed during exceptionally heavy rains in 1938 (which filled the lake in just three days instead of the estimated three years) remains at the bottom today.
The community of Crestline, adjacent to Lake Gregory, offers various cafes and restaurants. While there isn't camping directly at Lake Gregory Regional Park, there are accommodation options in Crestline and the surrounding San Bernardino Mountains. The San Moritz Lodge on the southeast shore, once a private club, now hosts special events and houses a senior center.
Lake Gregory is regularly stocked with brown and rainbow trout, making it a popular fishing spot. Anglers are required to have a valid California state fishing license and pay a county fee. Children under four can fish for free, and the park sometimes offers free fishing clinics. You can find more information on fish planting schedules via the California Department of Fish and Wildlife website.
While late spring through early fall is ideal for water activities, Lake Gregory offers a refreshing escape year-round. The cooler months provide excellent conditions for hiking the lake loop or nearby trails without the summer crowds. The surrounding cedar and pine forests are beautiful in any season, offering a tranquil setting for walks and enjoying nature.
Beyond the lake itself, the area is characterized by cool cedar and pine forests, providing a distinct mountain atmosphere. The Heart Rock/Seeley Creek Trail nearby leads to a unique heart-shaped rock formation and a waterfall. The south shore of the lake is also a popular fishing destination, offering scenic views.