Camp Carleton was the largest of several military camps to be maintained at various times in the vicinity of San Bernardino . It was established in the fall of 1861 by Captain William A. McCleave and a detachment of the 1st California Cavalry to check any successionest activities in San Bernardino County . After the camp was flooded in the Great Flood of 1862 , the camp 's garrison was moved to El Monte , where they established New Camp Carleton
Great Flood of 1862
Great Flood of 1862
Camp Carleton