DCHP-1 Online
jump-off point 
a place, usually a town, where one leaves the railway or other link with civilization to proceed into the wilderness.
See also: jumping-off place (def. 2a)
- 1958 [Grande Prairie] has been the jump-off point for many seismic and drilling crews pushing the search throughout the south Peace and on its fringes.
- 1966 Oxtongue Lake . . . was once one of the main jump-off points for canoe trips into the great preserve [Algonquin Park]. . . .
- 1958 [Grande Prairie] has been the jump-off point for many seismic and drilling crews pushing the search throughout the south Peace and on its fringes.