On September 4, 1995, at 1130 mountain daylight time, a Great Lakes 2T-1A, N5761G, nosed down during landing roll at Boulder Municipal Airport, Boulder, Colorado. The commercial pilot was not injured and the aircraft sustained substantial damage. Visual meteorological conditions prevailed for this local area 14 CFR Part 91 flight and no flight plan was filed. The flight departed Boulder at 1030. According to the pilot, during landing roll, his left foot slipped off the brake pedal and during the ensuing effort to get the aircraft under control he allowed the stick to ease forward. He said that when he applied back pressure, it had no effect and the aircraft nosed down and came to rest on the runway standing on its nose. The pilot said he exited the aircraft, and with help, got it back on the landing gear and pushed it to his hangar. According to the pilot and the FAA inspector who examined the aircraft, the propeller blades, spinner, and upper left wing sustained damage. Wind at the time of the accident was from 120 degrees magnetic at six knots. The landing was performed on runway 08.