The Los Padres National Forest is closing its campgrounds through Jan. 6.
The U.S. Department of Agriculture Pacific Southwest Region issued the order, which includes four other Southern California national forests.
Officials say the purpose is to protect visitors and U.S. Forest Service employees from the coronavirus.
Day use areas for hiking, dispersed camping and off-highway vehicle trails will stay open in the Los Padres National Forest.
Visitors with existing reservations are encouraged to contact Parks Management Company or visit Recreation.gov to reschedule their visit or request a refund.