Puente Hills Landfill, Municipal waste facility in Whittier, United States.
Puente Hills Landfill is a former waste facility in Whittier that once spanned roughly 700 acres and reached a height of about 500 feet. The site is now transitioning to a regional park with natural habitat areas and recreational facilities.
The facility began operating in 1957 as the San Gabriel Valley Dump and grew into one of the largest waste management centers in Los Angeles County. It operated for over 50 years before closing in 2013.
The site hosts educational programs about waste management and environmental conservation for schools and local communities. These programs help visitors understand how waste is handled today and why sustainability matters.
The site is accessible to the public as a developing park and can be explored on foot or by bicycle. Visitors should wear appropriate footwear since the terrain is uneven and paths vary.
The site once housed a gas system that converted methane into electricity, powering about 70,000 homes. This energy recovery from landfill gas shows how waste sites can become sources of power.
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