Transportation officials warned of dangerous road conditions at ski resort areas during the Presidents Day holiday weekend after a rock slide triggered a closure on State Route 18 near Big Bear Lake.
Caltrans closed the 18 five miles north of the State Route 330 junction at Snow Valley to Big Bear Dam. This forced some resort-bound motorists to turn around on Saturday.
Authorities said chains are required from the State Route 18 junction to the Mitsubishi plant in Lucerne Valley.
Drivers across Southern California have been facing rough road conditions due to heavy snow and rain over the past week. The Snow Valley Mountain and Mt. Baldy resorts were temporarily closed because of road closures.
Meanwhile, Mammoth Mountain announced seeing its snowiest February on record since 1987.