The pilot reported that she was doing a touch-and-go landing on the 1,500 feet gravel runway. Immediately after touchdown, approximately 500-1000 foot beyond the landing threshold, the pilot applied power and initiated the takeoff. Shortly after becoming airborne, the airplane collided with trees and terrain approximately 50 feet beyond the departure end of the runway. No mechanical anomalies or failures were reported with the airplane that may have contributed to the accident.