The Ramparts (Mackenzie River)
The Ramparts are rapids in a canyon that forms a navigational impediment on Canada's Mackenzie River, in the Northwest Territories. The river narrows from almost wide to barely more than.
The river's only other rapids, the Sans Sault Rapids, are found upstream. According to the 1968 Great Slave Lake and Mackenzie River Pilot, the rapids lie between mile 672 and 682.
Early explorers for the North West Company reported that Stone Age "eskimo" were known to have ascended the river as far as The Ramparts, in search of flint, to make stone tools.
