The Niagara Escarpment, a world biosphere reserve as designated by the United Nations, runs from the north at Bruce Peninsula and then east through the region cutting the Niagara Gorge at Niagara Falls. The Bruce Trail runs along the escarpment through mostly protected woodlands. The Cheltenham Badlands in Caledon is an environmentally degraded area along the Niagara Escarpment. Similar protection of some wooded areas exists on the Oak Ridges Moraine running east–west in the north end of the Greater Toronto Area, although development pressures continue to threaten the natural habitat.