Nipigon River Bridge
Cable-stayed bridge
Provincial park of Canada
The canyon is believed to have formed when a diabase sill dating from a billion years earlier was split open, either by the weight of advancing glaciers or the large volumes of water released during their retreat. Erosion by wind and rain continued the formation of the canyon. A large rock column known as the Indian Head can be seen from the northern viewing area.
Near Ouimet Canyon is the privately owned and operated Eagle Canyon, which features on-site camping, two footbridges spanning the gorge and a zip line.
The longer of the two footbridges is 182 metres (597 ft) long and is suspended 45 metres (148 ft) above the canyon floor. It claims to be Canada's longest foot suspension bridge, but is not, because Souris swinging bridge in Manitoba, re-built in 2013 is 604 ft long The zip line is claimed to be 0.5 miles (0.80 km) long and is advertised as Canada's longest, highest (175 feet (53 m)) and fastest (45 miles per hour (72 km/h)).