4.9
(6238)
8,849
hikers
Rockville Hills Regional Park Loop
01:46
6.08km
160m
Hiking
The Rockville Hills Regional Park Loop offers a delightful blend of scenery and varied terrain, making it one of the most popular trails in the area. This easy 3.8-mile (6.1 km) hike, typically completed in 1 hours and 45 minutes, guides you through oak woodlands and grasslands, past tranquil spots like Mason Pond, and up rolling hills. You'll gain about 514 feet (157 metres) of elevation, providing rewarding viewpoints over Fairfield and the surrounding valleys, perfect for a refreshing outdoor escape.
When planning your visit, remember there's a $3 per person entrance fee to the park. The trails are shared with mountain bikers, so stay alert and be courteous. Spring brings vibrant wildflowers, while drier seasons showcase the golden hues of the hills. Parking is available at the trailhead, and it's always a good idea to arrive early, especially on weekends, to secure a spot.
Rockville Hills Regional Park is a significant natural area, spanning 633 acres with a unique geological history evident in its volcanic rock formations. It's a segment of the extensive Bay Area Ridge Trail, offering a glimpse into the region's diverse ecosystems. Keep an eye out for local wildlife, including deer, fox, and various bird species, adding to the natural charm of this accessible regional park.
Last updated: June 9, 2026
Waypoints
Start point
Parking
Get Directions
2.02 km
Fern Falls Trail
Highlight • Trail
Tip by
5.11 km
Mason Pond
Highlight • Lake
Tip by
5.25 km
Karma Kit – Bike Repair Station
Highlight • Rest Area
Tip by
6.08 km
End point
Way Types & Surfaces
Way Types
5.25 km
836 m
Surfaces
3.44 km
2.65 km
< 100 m
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Elevation
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Weather
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Today
Monday 27 July
28°C
14°C
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Max wind speed: 23.0 km/h
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This route was planned by komoot.
Frequently Asked Questions
How long does it typically take to complete the Rockville Hills Regional Park Loop?
This easy 6.1 km loop generally takes about 1 hour and 45 minutes to 2 hours to complete, depending on your pace and how often you stop to enjoy the scenery.
Is the Rockville Hills Regional Park Loop suitable for beginners?
Yes, this specific loop is rated as easy, making it a great option for beginners or those looking for a relaxed hike. The park itself offers a range of difficulties, but this route is designed to be accessible.
What is the terrain like on this hike?
You can expect a varied landscape, transitioning through oak savannah, grasslands, and chaparral. While some main paths are wide dirt tracks, there can be sections with exposed volcanic rock, so sturdy hiking shoes are recommended.
What natural features or viewpoints can I expect to see along the way?
The loop offers dynamic scenery, especially vibrant in spring with wildflowers. You'll encounter blue oaks, buckeye, and coast live oaks, along with dramatic rock formations. From higher elevations, you might catch panoramic views of the Napa-Solano area.
Are there any specific highlights on the Rockville Hills Regional Park Loop?
Yes, along the route, you'll pass by the scenic Fern Falls Trail and the tranquil Mason Pond. There's also a convenient Karma Kit – Bike Repair Station if you're also exploring by bike.
Does this loop connect with other trails in Rockville Hills Regional Park?
Yes, the route utilizes sections of several trails within the park. You'll hike along parts of the Bay Area Ridge Trail - 01 - North Bay, as well as segments of the Unknown Trail, Upper Mystic, Middle Mystic, and Quarry trails.
What is the best time of year to hike this loop?
Spring is particularly beautiful with abundant wildflowers and lush greenery. Fall also offers pleasant temperatures. Summers can be hot, so an early morning or late afternoon hike is advisable during those months.
Is the Rockville Hills Regional Park Loop dog-friendly?
Yes, dogs are permitted in Rockville Hills Regional Park, but they must be kept on a leash at all times. There is a separate fee for dogs to enter the park.
Are there any entrance fees or permits required for Rockville Hills Regional Park?
Yes, an entrance fee is required to access Rockville Hills Regional Park. You do not need a separate permit for hiking this specific loop once you've paid the park entrance fee.
Where can I park for the Rockville Hills Regional Park Loop?
Parking is available at the main entrance to Rockville Hills Regional Park in Fairfield, California. The trailhead for this loop is easily accessible from the parking area.
What makes Rockville Hills Regional Park unique for hikers?
Rockville Hills Regional Park is often considered a 'well-hidden secret' offering a unique blend of diverse natural habitats, volcanic geology, and an extensive network of trails. It allows for endless exploration and the creation of unique loop routes on each visit, making it more than just a single trail experience.
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