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Unadilla River: Wikis


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The Unadilla River in New York State flows from south of Utica to the Village of Sidney where it flows into the Susquehanna River, which eventually empties into the Chesapeake Bay, an arm of the Atlantic Ocean.

Most of the length of the Unadilla forms the western border of Otsego County and the eastern borders of Chenango and Madison Counties. This border made up a significant portion of the Fort Stanwix Treaty Line of 1768.



The Unadilla has two branches which join at Unadilla Forks on the Otsego-Madison County border.

  • The West Branch of the Unadilla starts a few miles north of Bridgewater in southeast Oneida County. This branch was known as Eghwagy Creek during the early 18th century.


The Unadilla's tributaries (from North to South) include:

  • Showler Brook — from the west, north of New Berlin
  • Guilford Creek — from the west, north of Sidney

Alternate Names and Spellings

Unadilla has had various spellings and alternate names, particularly in the 18th century:

  • Che-on-a-dill-ha — Oneida dialect.
  • Teyonadelhouogh — Rev. Gideon Hawley's Journey to Broome County, Oquaga (Onaheghgwage), 1753
  • Tiona-derhaGuy Johnson's 1768 map
  • Tienaderha — Guy Johnson's 1771 map and Southeir's 1779 map
  • Tianaderaha — Surveyor-General, Simeon De Witt's map c.1790
  • TianaderhaFort Stanwix Treaty of 1768
  • Tunadilla — common spelling in many correspondences of the 18th century
  • Susquehannock — Vaughan's 18th century Chorographical Map


See also

External links

Coordinates: 42°45′46″N 75°16′38″W / 42.7629°N 75.2771°W / 42.7629; -75.2771



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