a point at the head of navigable water on a river; specifically, the head of navigation of the Columbia River, where it meets the Canoe River.
- 1827  (1914)  We had the satisfaction of landing at the boat encampment at the base of the Rocky Mountains.
- 1827  (1912)  Two of our Iroquois . . . carried snow shoes from the Boat Encampment. . . .
- 1859  (1863)  In March . . . the express . . . started from Edmonton . . . and continued on to the boat encampment. . . .
- 1963  Farther south, a route from . . . the Athabasca River led up a feeder stream . . . to join the Columbia River at the northernmost point of the Big Bend at Boat Encampment.