Hudson River Watershed Alliance
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Hudson River Watershed

Map of Hudson River Watershed
wa·ter·shed n.
  1. A ridge of high land dividing two areas that are drained by different river systems. Also called water parting.
  2. The region draining into a river, river system, or other body of water.
  3. A critical point that marks a division or a change of course; a turning point: “a watershed in modern American history, a time that ... forever changed American social attitudes” Robert Reinhold.
A watershed is a defined area of land from which water drains into a common water body by way of creeks, streams, soil, groundwater aquifers, etc. A series of small watersheds that drain into smaller streams, or tributaries, comprise a larger watershed that drains into a mainstream, or parent river. All main streams eventually flow into the ocean as they descend in elevation.

Watershed Map
 
Sub-basin Efforts
 
Major Tributaries

Facts About The Hudson River Watershed
  • The Hudson River flows from Lake Tear of the Clouds in the Adirondacks, (from Lake -Feldspar Brook feeds into Opalescent River which feeds into Hudson River) through New York Harbor to the mouth of the estuary in New Jersey.
  • The Hudson River is over 325 miles long and from Troy to New York Harbor is a tidal estuary, approximately 153 miles long. The Hudson River Estuary is a drowned river valley which was also partially glacially excised.
  • The Mahican originally called the river the Muh-he-kun-ne-tuk, which means “great waters in constant motion” or, more loosely, “river that flows two ways”.
  • The Hudson River is as deep as 200 feet in some places and can be as wide as 3.5 miles.
  • More than 206 species of fish live in the river.
  • The Hudson River watershed drains approximately 13,400 square miles and encompasses 11 major sub-watersheds.
  • More than 65 major tributaries flow into the Hudson River, with the Mohawk River as the largest tributary.
  • The Hudson River watershed is home to almost 5 million people, and encompasses 5 states: New York, Vermont, Massachussetts, Connecticut, and New Jersey.
  • Ninety-three percent of the Hudson River watershed lies in New York State.
  • Twenty-five percent of the Hudson River basin is used for agriculture, 60% is forested, and 8% is urban.
  • Almost 60% of the water in the watershed is used for commercial or industrial purposes.
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