The Kayaderosseras Creek, usually shortened to Kaydeross, is the largest river that lies completely within Saratoga County, New York State.

They named the creek Kayaderosseras (which translates into "Valley of the Crooked Stream") due to its tortuous course and dramatic drop in elevation.

An 1887 source says that the name was derived from French terms, a Mohawk corruption of either pays arrosé, a watered country, or pays des ruisseaux, a country of streams, adapted by the Mohawk when they pushed out the previous inhabitants, the Mahican, in the 17th century.

[2]: p.10 The creek is best known for providing water power to a host of paper mills and a hard edge-tool factory in the 19th century.

Today the creek possesses several popular fishing spots, especially in Rock City Falls, Milton Center, and Craneville.