The Bruce Trail is a hiking trail in southern Ontario, Canada from the Niagara River to the tip of Tobermory, Ontario. The main trail is more than 890 km (550 mi) long and there are over 400 km (250 mi) of associated side trails. The trail mostly follows the edge of the Niagara Escarpment, one of the thirteen UNESCO World Biosphere Reserves in Canada. The land the trail traverses is owned by the Government of Ontario, local municipalities, local conservation authorities, private landowners and the Bruce Trail Conservancy (BTC). The Bruce Trail is the oldest and longest marked hiking trail in Canada. Its name is linked to the Bruce Peninsula and Bruce County, which the trail runs through. The trail is named after the county, which was named after James Bruce, 8th Earl of Elgin who was Governor General of the Province of Canada from 1847 to 1854.