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Hiking trails & Routes
Los Angeles County
San Dimas

Bonelli Park Loop Trail

Moderate

20

hikers

Bonelli Park Loop Trail

02:49

10.8km

80m

Hiking

Hike the 6.7-mile Bonelli Park Loop Trail around Puddingstone Reservoir, offering moderate terrain and scenic views of the lake and mountain

Last updated: February 26, 2026

Waypoints

A

Start point

Parking

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1

3.26 km

Puddingstone Reservoir Dam

Highlight • Monument

2

3.37 km

View of Puddingstone Reservoir

Highlight • Viewpoint

Great view of the Puddingstone Reservoir, a 250-acre man-made body of water. There is a road that runs along the perimeter of the reservoir and there is a spot to …

Tip by

3

4.00 km

Puddingstone Dam

Highlight • Monument

You can cycle across the top of the dam, which was constructed in 1928 to help control flooding in the region. It stands at 147 feet high, and today supports a myriad of outdoor recreation activities on the reservoir.

Tip by

5.14 km

Beach

Beach

5

9.94 km

This reservoir plays several roles, such as providing water for agriculture, but also serving as a basin where you can swim, fish, and even sail.

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B

10.8 km

End point

Parking

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Way Types & Surfaces

Way Types

8.76 km

1.08 km

935 m

Surfaces

5.65 km

2.28 km

1.81 km

1.04 km

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Elevation

Elevation

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Weather

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Today

Tuesday 12 May

24°C

14°C

0 %

Additional weather tips

Max wind speed: 19.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

What is the terrain like on the Bonelli Park Loop Trail?

The trail offers a diverse terrain, including sections of single track, fire road, and asphalt. You'll encounter rolling hills, shaded areas along a creek, and parts that pass through wild mustard and under coast live oak trees. Some sections run very close to the water, paralleling a shoreline walkway.

Are dogs allowed on the trail?

Yes, the Bonelli Park Loop Trail is dog-friendly. Please ensure your dog remains on a leash throughout your hike.

What are the parking options and recommended starting points?

There is plenty of parking available within Frank G. Bonelli Regional Park. The South Shore Swim Beach is a recommended starting point due to its convenient amenities, including restrooms.

Is there an entrance fee for Frank G. Bonelli Regional Park?

Yes, Frank G. Bonelli Regional Park typically has an entrance fee. For current fee information and operating hours, it's best to check the official lacounty.gov website.

What can I see along the route?

Along the loop, you'll enjoy expansive views of Puddingstone Lake and the San Gabriel Mountains in the distance. Notable landmarks include the Puddingstone Reservoir Dam and various viewpoints of Puddingstone Reservoir. The trail also passes by Raging Waters and numerous picnic areas.

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

The trail can be enjoyed year-round, but spring offers vibrant wild mustard blooms. Evening hikes are particularly pleasant for spotting wildlife and enjoying sunset views over Puddingstone Lake.

Does the trail intersect other well-known paths?

Yes, the route also passes through sections of the Bonelli Trail, Tree Line Trail, and Kikos Trail.

What wildlife might I encounter?

Hikers may spot waterfowl, desert cottontails, roadrunners, and quail. However, be aware of potential hazards like rattlesnakes, poison oak, and ticks, and always stay on established trails.

Are there restrooms available on the Bonelli Park Loop Trail?

Yes, restrooms are available at various points around the park, particularly at popular areas like the South Shore Swim Beach, which is a recommended starting point.

Is the Bonelli Park Loop Trail suitable for families with children?

Yes, this is considered a fun, family-friendly experience. Its generally easy to moderate difficulty and diverse scenery make it suitable for a range of ages, especially if you stick to the lake-level paths.

Are there dining options or cafes near the park?

While the park itself has picnic areas, you'll find various dining options and cafes in the nearby city of San Dimas, just a short drive from Frank G. Bonelli Regional Park.

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