Granite Construction vs. wildlife corridor

Granite Construction’s proposed Liberty Quarry mine would affect both human health and wildlife. The area has been identified by biologists as one of only 15 such wildland corridors in all of Southern California that “if even one fails, the biological integrity of the entire region would be compromised.” The mining company wants to blast a 1,000-foot-deep, one-mile-long pit mine, dynamiting every day and adding 1,600 diesel truck trips to the Rainbow Valley Road off/on ramps every day for the next 75 years.

Conservation agencies and public land managers are already trying to mitigate the effec...