First fort built by free-trader Frobisher 1772, on Churchill river (called also English river) near mouth of Deer river, outlet of Reindeer lake, near Frog Portage (q.v.) on north side of Churchill river. Shown on map No. 3. Another fort was built by Henry in June 1776 at "Portage de Traite". The North West Co. succeeded to these forts which they maintained to time of Union 1821. Hudson's Bay Co. post was nearby & was called Rapid River fort, which see.

La Traite was also called Frog Portage fort and fort Du Traite.