DCHP-1 Online
trunk line 
an access road (def. 1), so called because smaller forest trails branch from it.
See also: access road (def. 1) trunk road
- 1965 There is one filling station at the junction of the main north-south road and the Highwood trunk line.
- 1965 There is one filling station at the junction of the main north-south road and the Highwood trunk line.