Called also La Tourette or Latourette. Built by Charles Dulhut, Sieur de la Tourette, in 1684, at mouth of Ombabika river, on northeast shore of lake Nipigon. Dulhut in 1684 wrote to M. de la Barré, Governor of New France, mentioning the fort which he had built on the river A la Maune at the head of lake Alempigon (Nepigon). It is shown on Jaillot's map of 1685 and 1696 marked "Poste du Sr. Duluth pour empêcher les Assiniboels et autres sauvages de descendre à la Baye de Hudson". (Map No. 117). It is also shown on La Hontan map of 1703. The route to Hudson Bay from lake Nipigon by the Ombabika, Ogoki, and Albany rivers, was first discovered by a Canadian named Perré and old maps show a river de Perré from lake Nepigon to Hudson Bay. See maps No. 19 and 18, 67 and 68.

Vérendrye was in charge of fort La Maune in 1726. The fort was maintained by the French until the cession of Canada, lake Nepigon being the headquarters of the French fur traders in that region. The fort was probably destroyed at the time of, or soon after, the departure of the French garrison. Neither the North West Co. nor the Hudson's Bay Co. included this fort in their various lists. (See Nipigon House). A map of 1737 shows a fort at the north end of lake Nipigon probably meant for fort La Maune.