DCHP-1 Online
caterpillar-tractor train 
n. North a tractor-drawn train of sleds and cabooses (def. 5), the principal means of transporting freight, supplies, etc. in the Canadian North
See also: caboose (def. 5) cat-train
- 1934 (Caption) Arctic "Caterpillars." An account of man's fight with winter and his ingenuity in keeping a caterpillar tractor train running in the face of great difficulties.
- 1953 Another kind of arduous northern work is done by the men on the caterpillar tractor trains. Every winter these trains travel over northern lake and river ice, pulling heavy supplies into remote mining and fishing and trading communities.
- 1934 (Caption) Arctic "Caterpillars." An account of man's fight with winter and his ingenuity in keeping a caterpillar tractor train running in the face of great difficulties.