Recreational Trails

Bicycle and Walking Trails

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Downloadable Trail Map

As urban areas become further developed, opportunities for outdoor recreation are in greater demand. Recreational trails in Diamond Bar provide opportunities for casual and active walking and hiking experiences, nature watching, mountain (off-road) biking, and provide linkages to regional trails adjacent to the City of Diamond Bar. The recreational trails in Diamond Bar are rustic in nature, typically not paved, and are found in the City's parks and open space areas and along utility easements.

Contact Information

Peterson Park Trail

This trail is .2 of a mile long and has been nicknamed the Diamond Bar Sunset Vista Trail. An identification sign, the result of an Eagle Scout project, is posted at the start of the trail. The trail climbs the slope on the east side of the park, using switchbacks that turn the 26% grade of the slope into a moderate hike. Two benches are located at the top of the trail.


  • Poison Oak under Oak Trees
  • Steep slopes with grades of up to 26% can be slippery to walk on
  • Rattlesnake habitat
  • Path may be uneven due to loose rocks and erosion

Pantera Park Trail - Totaling 1.6 miles (including undeveloped loop). Includes ADA-accessible pathway and shade structure, switchback trails with handrails and wooden steps (303).

Sycamore Canyon Park Trail

The trail, which is 1.6 miles (roundtrip) in length, starts in the undeveloped portion of the park south of the lower parking lot. The trail travels above the creek and is shaded a portion of the way by Sycamore and Oak Trees. Slopes with grades of up to 10% take the trail into  a Walnut Woodlands riparian habitat, where Oak, Walnut, and Sycamore Trees have been planted to create a home for wildlife. The trail of a grade of up to 22% continues to a staircase leading to access at the trail head adjacent to Diamond Bar Boulevard. The trail also includes a par course ten exercise stations located on the mesa overlooking the canyon.


  • Poison Oak along creek portion of the trail
  • Steep slopes with grades of up to 22%, can be slippery to walk on
  • Rattlesnake habitat
  • Path may be uneven due to loose rocks and erosion
Summitridge Park Trail
This trail provides the best loop trail opportunity in the city. It features three options, up to one (1) mile in length, and includes the Ridge Route, Canyon Loop and the Grand View Route.

Ridge Route - Access to the Ridge Route path is made of decomposed granite and 105 wooden landscape tie steps found at the end of the cul-de-sac on Clear Creek Canyon Drive at Steep Canyon Road. Views of Diamond Bar can be taken in at the top of this first slope (which is about ¼ mile from the beginning of the trail). The trail continues east and descends to an access point at Wynnewood Drive. The trail then climbs again to the east with slopes containing grades of up to 25%. This leads to a flat pad that may be developed as a rest stop, and has an access point to Peak Court. Views of Tres Hermanos and the Arnold Reservoir are available from this flat pad. The trail then turns south where a fork in the trail gives two options. The fork to the right (west) leads to the Canyon Loop, and the fork to the left (south), with more vistas leads to Summitridge Park.

Canyon Loop - Access to the Canyon Loop is at a Southern California Edison easement on the east side of the Dare Court cul-de-sac. The trail heads east and starts with a moderate climb up slopes with grades of up to 19%. The trail continues slightly up hill to the east until it starts rising dramatically to connect to the Ridge Route. Slopes at this point have grades of up to 29%. There is a fork in the trail when it connects to the Ridge Route that provides two options. The fork to the right leads to Summitridge Park. The fork to the left leads to access points at Peak Court and Wynnewood Drive, and then to Clear Creek Canyon Drive at Steep Canyon Road. There is a third option at the point right before the Canyon Loop and the Ridge Route meet. Turn right and follow the trail back to Dare Court. 

Grand View Route - Access to this trail is at the northwest portion of Summitridge Park. The Trail goes west and runs along the top of the ridge, offering nice views of Diamond Bar. It descends gradually until it comes to the end of the ridge. The visible portion of the trail ends at this point, but it is possible to descend the steep slope of a 29% grade to the right side of the ridge to the Los Angeles Flood Control District easement at the end of Meandering Creek Drive. Access to Meandering Creek Drive is blocked by a locked gate, but there a traversable route that has open access to the Canyon Loop Trail.  Access to the Canyon Loop is possible by following the trail to the right (north east). Access to the Ridge Route is possible from this point by going left and following the trail north to the top of the Steep Canyon Trail Head.

  • Steep slopes with grades up to 29% can be slippery to walk on
  • Rattlesnake habitat
  • Paths may be uneven due to loose rocks and erosion
Trail Safety Tips
  • Use of trails is at your own risk. There is little or no shade and no water along most portions of the trails.
  • Use caution when using the trails as they are undeveloped and uneven due to loose rocks and erosion. The trails may be slippery due to loose soil, vegetation, and dampness.
  • Open space areas are home to area wildlife including coyotes and rattlesnakes.
  • Be alert and keep small children and pets under supervision.
  • There are no restrooms, drinking facilities, or telephones within open space or along the trails.
  • In order to maintain native vegetation and control erosion, please do not leave the existing trails.