Cowles Mountain as seen from San Diego. A remnant of the "S" can be seen near the summit.
|Elevation||1,593 ft (486 m) NAVD 88|
|Prominence||991 ft (302 m)|
|Location||San Diego County, California.|
|Topo map||USGS La Mesa|
Cowles Mountain is a prominent mountain within the city limits of San Diego, California and also within Mission Trails Regional Park, in a neighborhood known as San Carlos, San Diego. The mountain is named after George A. Cowles, an early ranching pioneer in San Diego County. Its 1,593-foot (486 m) summit is the highest point in the city of San Diego. The main trail to the summit is a popular hiking destination taking hundreds of people per day to a 360-degree panorama of San Diego County. The hike to the top is 1.5 miles (2.4 km) long and an elevation change of about 950 feet (290 m).
San Diego State University
For many years Cowles Mountain was locally known as "S" Mountain. In 1931, 500 students from San Diego State University (SDSU) painted a 400-foot-tall (120 m) letter "S" on the side of the mountain, after which it took on its popular name. In April 1942, during World War II, the local military ordered the S covered up for the sake of national security. After the war the painting tradition was resurrected. In the 1970s, the annual repainting tradition was discarded due to complaints from environmentalists but enjoyed a brief resurgence in the late 1980s.
The mountain, except for marked trails, is now a protected area, and the "S" has not been repainted for nearly two decades.
The main trail to the summit is a popular hiking destination taking hundreds of people per day to a 360-degree panorama of San Diego County. The hike to the top is 1.5 miles (2.4 km) long and an elevation change of about 950 feet (290 m). This trail is on the corner of Golfcrest Drive and Navajo Road. A much-less-used but maintained trail begins near the intersection of Boulder Lake Avenue and Barker way. This trail meets the main trail near the summit.
Cowles Mountain consists of Jurassic and early Cretaceous metavolcanic and shallow intrusive igneous rocks that are resistant to erosion, and never covered by later Cretaceous and Tertiary sedimentary overburden. Small plateaus on the south and east slopes are the remnants of an extensive terrestrial, near sea level erosional surface called the Poway Terrace that are now about 1,200 feet (370 m) in elevation. A prominent former seacliff on the west side rises above a now-dry wave-cut terrace, now mostly covered with suburban developments, at about 600 feet (180 m) in elevation.
- "Cowles Mountain, California". Peakbagger.com. Retrieved 2014-01-30.
- "Cowles Mountain". Geographic Names Information System, U.S. Geological Survey. Retrieved 2014-01-30.
- "SDSU from A-Z". San Diego State University. Archived from the original on 2011-07-20. Retrieved 2011-07-20.
- Grieco, Sarah (2013-03-14). "Cowles Mountain to Temporarily Close". NBC San Diego. Archived from the original on 2014-05-31. Retrieved 2014-05-31.
- Swain, Liz (2013-05-14). "Cowles Mountain trail repaired, ready to open on May 18". San Diego Reader. Archived from the original on 2014-05-31. Retrieved 2014-05-31.
- "History". Mission Trails Regional Park Online.
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