Frank G. Bonelli Regional Park
- Park
- Regional draw
- San Dimas
Frank G. Bonelli Regional Park surrounds Puddingstone Reservoir with picnic areas, open landscape and a substantial network of multiuse trails.

The lake and surrounding hills support a varied outdoor visit near San Dimas.
The photograph shows the actual reservoir at sunset. Check current county opening days and entry fees before travelling; the park currently closes on Mondays and Tuesdays. Swimming operates seasonally in designated areas, while boating requires inspection and permits. Camping, rentals and nearby concession attractions have separate arrangements. Use the current trail map, share routes with other permitted users and respect temporary closures and water-access restrictions.
Visitor details reviewed October 26, 2026. Check official visitor information for current access, admission, and operating arrangements. View on OpenStreetMap.
Image credit: Plane777 at English Wikipedia / Wikimedia Commons. Original source. Public domain. Resized and converted to WebP; may be cropped for display.
Nearby
More places nearby
In-N-Out Burger Pomona DragstripIn-N-Out Burger Pomona Dragstrip is a long-established motorsport venue at the Fairplex grounds.
Walnut Creek Community Regional ParkWalnut Creek Community Regional Park protects a creek corridor near San Dimas, Covina and Glendora.
Wally Parks NHRA Motorsports MuseumWally Parks NHRA Motorsports Museum explores hot-rodding, drag racing, and the pursuit of speed at Fairplex in Pomona.
Hilmer Lodge StadiumHilmer Lodge Stadium is a major track-and-field and football venue at Mt.
Raymond M. Alf Museum of PaleontologyThe Raymond M. Alf Museum of Paleontology introduces ancient life through fossils and trackways on The Webb Schools campus in Claremont.
Willow Springs ParkWillow Springs Park provides a small landscaped public setting in Glendora, reached from North Willow Springs Lane.