On May 1, 1999, approximately 0745 mountain daylight time, a Cessna 182Q, N95631, was substantially damaged during landing at a private airstrip near Marfa, Texas. Visual meteorological conditions prevailed, and a flight plan was not filed for the 14 Code of Federal Regulations Part 91 personal cross-country flight. The aircraft was registered to a private individual, and operated by Gene's Flight School and Pilot Services of Santa Teresa, New Mexico. The private pilot and his only passenger sustained minor injuries. The flight originated from the El Paso International Airport, El Paso, Texas, at 0645. The pilot reported to the FAA inspector that during the approach to the private airstrip, the aircraft drifted left of centerline. During the landing to the north, the airplane's left main landing gear struck a pile of dirt, located on the left side of the approach end of the runway. Subsequently, the aircraft nosed over and came to rest inverted. The pilot further reported that the wind was calm at the time of the accident. The pilot reported in the Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1/2, that the airstrip rises to the north and the last 600 feet has a "dog-leg" to the right. He added that all pilots approach to the north over the left side of the approach end of the runway. The pilot further reported that the pile of dirt on the left edge of the runway was a result of the airstrip's construction. The pilot also stated that he had landed at the airstrip in "a Maule 5 times previously." Examination of the aircraft by the FAA inspector revealed that the fuselage, firewall, vertical stabilizer, and wings were damaged.