The Whittier Hills are a wilderness area and as such present certain inherent dangers. Visitors must be aware of these dangers, and know they can minimize risks on trails by being informed, prepared, and alert.
It should not be assumed that the trail descriptions on this site are any guarantee of their safety. Trail conditions change daily, and enjoying a trail safely depends on one's conditioning, experience, and ability.
This site is not affiliated with the Puente Hills Landfill Native Habitat Preservation Authority or any other agency.
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It's a very big thing. It's going to be a tremendous place for hiking and outdoor recreation, and we're going to protect the environment.
—Whittier City Councilmember Bob Henderson, March 2002
Topographical map of Turnbull Canyon and environs. Image derived from topozone.com