New York (state) of the state's geographic area is dominated by meadows, forests, rivers, farms, mountains, and lakes. Most of the southern part of the state rests on the Allegheny Plateau, which extends from the southeastern United States to the Catskill Mountains; the section in New York State is known as the Southern Tier. The rugged Adirondack Mountains, with vast tracts of wilderness, lie west of the Lake Champlain Valley. The Great Appalachian Valley dominates eastern New York and contains the Lake Champlain Valley as its northern half and the Hudson Valley as its southern half within the state. The Tug Hill region
Avalanche Lake (New York) miles to the east. Avalanche Lake feeds Lake Colden to the south, in the Hudson River watershed. To the north, the trail to the lake from the Adirondak Loj surmounts Avalanche Pass, which is only slightly above lake level but separates it from the Lake Champlain (St. Lawrence River) watershed. Following the lake toward Lake Colden, the trail is choked with large boulders, and a number of wooden ladders have been built to make passage possible. There are also three places where the trail takes to wooden catwalks, first built in the 1920s, that are bolted directly into the cliff