Back River (
Thlewechodyeth, or "Great Fish River"), is a river in
Canada's
Nunavut territory. It rises in Sussex lake, a small body of water in 108° 20' W. and 64° 25' N., and flows with a very tortuous course northeast to an inlet of the
Arctic Ocean, passing through several large lake-expansions -
Pelly[?],
Carry[?],
MacDougall[?] and
Franklin[?].
Like the Coppermine River[?], the only other large river of this part of Canada, it is rendered unnavigable by a succession of rapids and rocks.
It was explored by Sir George Back[?] in 1834. Its total length is 900 kilometres.