Photograph of a distant view of snow-capped Mount San Antonio (or Mount Baldy), ca.1920. Grass covers most of the land in the foreground. Thicker vegetation covers the area near the base of the mountain.; "The crown jewel of the San Gabriel Mountains, majestic Mt. San Antonio (10,064 ft. elevation) towers over all other peaks in the range. More popularly known as Mt. Baldy or Old Baldy, it is the highest point in the San Gabriel Mountains. It is not, however, the highest mountain in Southern California. That distinction goes to 11,502 ft. Mt. San Gorgonio, popularly known as Old Grayback, which is in the San Bernardino Mountains within the San Bernardino National Forest. Mt. Baldy is visible from much of Southern California and conversely much of Southern California can be seen from its summit, air pollution permitting. Not only is Mt. Baldy high, it is massive, somewhat pyramidal in shape and fairly symmetrical - it looks like a king of the mountains should look. It is one of the most photographed objects of the Southern California landscape. Its snow-covered summit has appeared on post cards and tourist literature lauding the attractions of Southern California for nearly a hundred years. Seen with its snowy summit glowing like a live coal at sunset or with snow blowing in a great plume from the top, it is an awe-inspiring sight." -- unknown author.; "San Gabriel Mountains, segment of the Pacific Coast Ranges, extending eastward for about 60 miles (100 km) from Newhall Pass, north of San Fernando, to Cajon Pass in southern California, U.S. Many peaks in the San Gabriel chain exceed 9,000 feet (2,700 m), including the twin peaks of North Baldy (9,131 feet) and Mount Baden-Powell (9,389 feet), about 65 miles (105 km) northeast of Los Angeles, and Mount San Antonio, or "Old Baldy" (10,080 feet), the highest point. The range also includes Mount Wilson (5,710 feet), with its famous astronomical observatory, just northeast of Pasadena; favorable weather allows its use for about 300 days a year. Between 1922 and 1927 the physicist Albert A. Michelson measured the speed of light by sending a beam of light from Mt. Wilson to a mirror on Mt. San Antonio and back again. The mountains are largely within the Angeles National Forest. The southern foothills, which enter residential and agricultural communities of Los Angeles and San Bernardino counties, are noted for citrus-fruit production." -- unknown author.