Camp David through the use of publicly accessible satellite images. On July 2, 2011, an F-15 intercepted a small two-seat passenger plane flying near Camp David, when President Obama was in the residence. The civilian aircraft, which was out of radio communication, was intercepted approximately from the presidential retreat. The F-15 escorted the aircraft out of the area, and it landed in nearby Hagerstown, Maryland, without incident. The civilian plane's occupants were flying between two Maryland towns and were released without charge. On July 10, 2011, an F-15 intercepted another small two-seat passenger plane flying near Camp David when Obama was again
China Camp State Park last remaining Quan family member living there, continued to fish, selling most of his catch for bait. In the early 1970s, Gulf Oil expressed interest in large-scale development of the area, including high-rise condominiums and large commercial areas. Local residents and environmental and conservation groups protested the plan, and as a result, the land was sold for approximately $2.3 million in 1976 to the nonprofit California State Parks Foundation, who in turn sold it to the state of California to create China Camp State Park. Chinn Ho donated the 36-acre site of China Camp village for preservation as a memorial