On September 1, 1998, about 0900, a wheel equipped Piper PA-18-150 airplane, N7279K, sustained substantial damage when it collided with terrain during an attempted takeoff from a remote, off airport site located about 22 miles northwest of Anchorage, Alaska. The solo private pilot was not injured. The local, 14 CFR Part 91 flight operated in visual meteorological conditions without a flight plan. The intended destination was Lake Hood Airstrip, Anchorage. The pilot reported he had flown to the accident site the day before to hunt ducks. He said he was utilizing an unimproved site about 500 feet in length for takeoff and landing. On the accident takeoff, he indicated he was attempting to takeoff to the north, and he estimated the wind to be from the east about 6 to 8 mph. During the takeoff roll, the airplane became airborne after about 300 feet, but soon settled to the ground, drifted to the left, and went into the adjacent undergrowth. The airplane subsequently encountered rough terrain, and nosed over. The pilot reported there was no preimpact mechanical problems with the airplane.