Chino Hills State Park: Wildlife Corridor

Coal CanyonThe first cohesive battle was the preservation of a permanent connection between the Santa Ana Mountains to the State Park.  This was the only remaining viable connection to the Park was through the Coal Canyon.  This canyon had two properties that together linked the Mountains to the Chino Hills State Park (CHSP).  The southern parcel, owned then by the St. Clair Company had already began the process of development and had received its entitlements for 1,550 homes.  Hills For Everyone, state and local elected officials worked to secure funding for the acquisition of the St. Clair parcel and it became a reality when money from 12 different funding sources, totaling $40 million, was used in 2000 to buy the 649 acre canyon.  The northern parcel, known as the Mancha property had also already begun the process of development, which include not only homes, but industrial and commercial buildings too.  Again, State Parks and others worked to secure $13.5 million to buy this 32 acre parcel. 

The preservation of Coal Canyon was significant for many reasons.  It marked the first time in state history, land was purchased for preservation of a wildlife corridor.  It also marked the first time in state history, CalTrans removed the on and off ramps for a wildlife corridor.  Since Coal Canyon was now saved from development, other connections were essential to protect the integrity of the Wildlife Corridor.  CHSP, at over 14,000 acres is the largest anchor of the hillside system, but 4,000 acres had also been preserved in the Puente Hills.  Lands between the Chino Hills and the Puente Hills needed to be acquired, this land is called the Missing Middle.

Shell-Aera propertyThe Missing Middle is comprised of two large parcels.  The first is owned by Shell-ExxonMobil, who plans to build 3,600 houses on its 3,000 acres.  The property is situated between Harbor Blvd. in La Habra Heights and easterly across the hills past the 57 freeway near Brea and Diamond Bar.  Aera Energy, the local representatives of Shell-ExxonMobil, have slowly been pushing their development plans through the Counties of Los Angeles and Orange.  The development of the Shell-Aera parcel would sever the Wildlife Corridor and the lands west of the Missing Middle would slowly become devoid of the plants and animals.  The second property is owned by the City of Industry, who plans to build three large reservoirs with over a dozen saddle dams on its 6,000 acres.  In addition, Industry plans to build a new freeway across the hills connecting the Inland Empire to the 57 freeway in Brea.  The road or the dams would both sever the Corridor and place the existing investments at risk.  Again, groups across the hills are working to complete the Wildlife Corridor by acquiring the Shell-Aera property and stopping the dam/freeway plans by the City of Industry.

Unfortunately, major threats to the CHSP still exist today a lot of which are focused at the Coal Canyon connection, including, but not limited to: the expansion of the 91 freeway, the addition of riprap (rock armouring) along the Santa Ana River, the creation of additional railroad lines and a highway through the State Park and the Mancha parcel connecting the 15 freeway to the 241 toll road.  It is only due to the perseverance of the State Park staff, non-profit groups like Hills For Everyone, and multi-county joint powers authorities like the Wildlife Corridor Conservation Authority that the Park is what it is.

Follow this link to learn about the Park's history.

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