The Adirondak Loj (pronounced "Adirondack Lodge") is a historic lodge in North Elba, Essex County, New York. It is near Lake Placid in the Adirondack Mountains. The current facility, located on the shore of , was built in 1927 and is owned and operated by ADK (Adirondack Mountain Club). The Loj property hosts the trailhead of the popular Van Hoevenberg Trail, which leads to Mount Marcy and Algonquin Peak, the two highest points in the state. The Loj sits on a private protected area of 706 acres that includes Heart Lake and Mount Jo; the preserve is owned and managed by ADK.