Under Yellow Post Sites you have that there are no current fire restrictions - but there are! No campfires or charcoal fires are currently allowed anywhere on the National Forest. Best to point folks towards the San Bernardino NF Website Fire Restriction Page to get the latest info.
The name San Bernardino, given to the mountains, the National Forest, the valley, the city, and the county, originated with the last surviving member of Junipero Serra's band, Padre Dumetz. Leading a party of missionaries, soldiers, and Native Americans, Dumetz entered the valley on May 20, 1810. Since this was the feast day of St. Bernard of Sienna, he named the valley "San Bernardino" in honor of that saint.