Diamond Bar, CA | Official Website

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Trail Repair Project

A nearly $1 million project to restore public access to the Diamond Bar Boulevard trailhead to Sycamore Canyon Park trail is now underway
Fourth of July Event

This year’s event will take a different format with a new location and more patriotic festivities, but no fireworks show
GIS Map Library

Access more than a dozen web-based maps that provide locations and details on a variety of projects, amenities and services
Coyote Awareness Tips

Increased coyote sightings and activity are common this time of year - take steps to eliminate food sources and potential shelter sites near your home