See also: box-canyon
- A canyon which has a single access for entrance and exit, being otherwise enclosed on all sides by steep walls.
1912, Jack London, chapter 2, in Smoke Bellew:
- The Box Canyon was adequately named. It was a box, a trap.
1917, Zane Grey, chapter 6, in Wildfire:
- For days he camped on Wildfire's trail, always relentlessly driving him, always watching for the trap he hoped to find. . . . Sooner or later Wildfire would go down into a high-walled wash, from which there would be no outlet; or he would wander into a box-canyon.
- 2005 July 3, Alison Berkley, "In Telluride, the Skis Are Stowed, but Good Times Aren't ," New York Times (retrieved 16 Jan 2014):
- Highway 145 dead-ends on the east end of Telluride, where a box canyon affords no further passage.
- “box canyon” at OneLook Dictionary Search