Adirondack High Peaks

[1] Those who have climbed all 46 High Peaks are eligible to join the Adirondack Forty-Sixers club.

The Marshall brothers wished to climb every notable peak in the Adirondacks, which they accomplished with Clark between 1918 and 1925.

[4] All but three of the peaks are located in central and northern Essex County, primarily south of Lake Placid and Keene Valley.

[10] The MacIntyre Range includes four out of the forty-six High Peaks: Mount Marshall, Wright, Algonquin and Iroquois.

Atop the highest peaks, above the tree line, lies a small alpine ecosystem, a remnant of a larger lowland tundra that retreated uphill following the most recent period of glaciation.

Twenty of the peaks have no official trail to the top, although rough informal routes, commonly referred to as "herd paths," have developed over the years.