This is the crash site of a Cessna 172 (N7711G) that impacted PSA Flight 182 in 1978. I own a Piper Cherokee 180, a similar aircraft.
From Wiki:
At 8:59 am, the PSA crew was alerted by the approach controller about a small Cessna 172 Skyhawk aircraft nearby. The Cessna was being flown by two licensed pilots. One was Martin Kazy Jr., 32, who possessed single-engine, multiengine, and instrument flight ratings, as well as a commercial certificate and an instrument flight instructor certificate. He had flown a total of 5,137 hours. The other, David Boswell, 35, a U.S. Marine Corps sergeant, possessed single-engine and multiengine ratings and a commercial certificate. He had flown 407 hours at the time of the accident, and was practicing instrument landing system approaches under the instruction of Kazy in pursuit of his instrument rating. They had departed from Montgomery Field and were navigating under visual flight rules, which did not require the filing of a flight plan. Boswell was wearing a "hood" to limit his field of vision straight ahead to the cockpit panel, much like an oversized sun visor with vertical panels to block peripheral vision, which is normal in IFR training. At the time of the collision, the Cessna was on the missed approach (in visual meteorological conditions) from San Diego airport's (also known as Lindbergh Field) Runway 9, heading east and climbing. The Cessna was in communication with San Diego approach control.[1]: 2
