The Sans Sault Rapids are a navigational impediment on Canada's Mackenzie River, in the Northwest Territories.
[2] Barry Gough, in his account of explorer Alexander Mackenzie's transit of the river, recounted how Mackenzie's guides described the rapids as "the most difficult, dangerous stretch of the river to canoe."
However, he found that his party was able to transit the rapids, and avoid a tedious portage, after all.
A rock ridge extends into the river channel, from the east bank.
The river's only other rapids, the Ramparts, are found 56 kilometres north.