Ausable Chasm, New York

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Ausable Chasm

Ausable Chasm is a sandstone gorge and tourist attraction located in the village of Keeseville, New York, U.S.[1] The Ausable River runs through it, and then empties into Lake Champlain. It is directly due west of Port Kent, New York.

Geological formation[edit]

The gorge is about two miles long, and is a tourist attraction in the Adirondacks region of Upstate New York. It is fed by the Rainbow Falls at its southern extreme.

The chasm has a continuous exposure of a section of the Potsdam Sandstone more than 160 metres (520 ft) thick, which includes a rare, mid-cambrian jellyfish fossil.[2]

Some of the rock formations have been given names such as, The Devil's Oven, Cathedral, Sentinel Rock, Elephant's Head, The Flume, and Table Rock.[1]


In 1760 Major John Howe explored the chasm on ropes. Called by some, the "Little Grand Canyon of the East", the 1½-mi-long chasm opened to the public in 1870.[3]

Cultural attractions[edit]

  • North Star Underground Railroad Museum, commemorating the Underground Railroad, operated by the North Country Underground Railroad Historical Association is on Mace Chasm Road in Ausable Chasm, NY on County Route 71, south of the junction of County Route 373 and U.S. 9.[4]


  1. ^ a b "AuSable Chasm", Amazing Adirondack Wonders, Adirondack Wilderness Foundation, 2011 ISBN 9781458364159
  2. ^ James W. Hagadorn and Edward S. Belt (2008), Stranded in Upstate New York: Cambrian Scyphomedusae from the Potsdam Sandstone, Palaios, v. 23, p. 424–441, doi:10.2110/palo.2006.p06-104r
  3. ^ "Ausable Chasm", Fodor's
  4. ^ North Star Underground Railroad Museum

External links[edit]

Coordinates: 44°31′45″N 73°27′40″W / 44.52917°N 73.46111°W / 44.52917; -73.46111