Images of Niagara Falls and surrounding land shortly after the collapse of a rock shelf between Prospect Point and Luna Island. The collapse altered the contour of the falls for the first time in centuries. A cavity 150 feet wide has opened in the rim of the falls. Ice formations seen near the falls flowing water and encrusted on the viewing platforms. Two men seen standing near the falls.
View of the Cave of Winds at base of Niagara Falls. Workmen build Cave of Winds wooden bridges while they endure rapids and dangerous water at the base of the Niagara Falls. Workman saws wood while covered with heavy mist at the base of Niagara Falls. Workman crawls carefully on wooden bridge to cross rapids. Heavy mist covers view of workmen in wooden bridges at Cave of Winds. Torrential rapids fall and mist covers the Cave of Winds and Niagara Falls.