The , which began in the Warner Springs area, continues to burn eastward into Anza-Borrego Desert State Park and is also burning to the northwest.
There are no evacuation orders or road closures in place for the general public, CalFire reports.
In the northern region, the blaze is moving through heavy vegetation with no known fire history. Warmer temperatures and lower humidity are expected to challenge firefighters, CalFire reported Tuesday morning.
Winds may carry smoke into Coachella Valley and Borrego Springs.
Borrego Palm Canyon Campground and Trail remain closed. The fire is still visible from Borrego Springs.
CalFire is not projecting a date by which they expect to have the fire fully under containment.
The fire began Thursday on Los Coyotes Indian Reservation on land leased by the native Americans to a private company that offers it for military training exercises. The cause is under investigation.