On February 10, 1962 I helped the San Diego Chapter of the Sierra Club Rock Climbing Section take some movies to be shown on television. Mission Gorge is located in the Mission Trails Regional Park. Climbing routes include trad, sport, and mixed lines on slick rock.
Rock Climbing in Mission Gorge This link provides extensive information on the available climbs. 1973 Climbers Guide.
Mission Gorge Rock Climbing area map
Mission Gorge climbing area from road