On January 20, 1995, at 1300 central standard time, a Cessna 172, N84603, operated by the Buena Vista Flying Club of Richland Center, Wisconsin, and flown by a Certified Flight Instructor, nosed over following an overrun landing. The landing was made on runway 09 (2,129' x 40') at the Blackhawk Airport, Cottage Grove, Wisconsin. The airplane was substantially damaged and the pilot received minor injuries. The flight departed Richland Center, Wisconsin, under VFR conditions without a flight plan at 1230 central standard time. The pilot stated that while en route he requested the weather conditions from the Madison Air Traffic Control Approach Control. He stated he also requested an airport advisory from Unicom but received no response and that the windsock was indicating a wind from 030 degrees. He elected to land on runway 09. As the airplane was slowing, according to the pilot, it contacted a patch of ice and slide sideways. The airplane straightened out and slid off the end of the runway where it contacted a snowbank and nosed over. The airplane came to rest on a road near the end of the runway. Winds reported at the Dane County Regional Airport, 9 miles from the accident site, were 330 degrees at 15 knots.