DCHP-1 Online
portage sling Fur Trade, Obs. 
a kind of harness for carrying heavy loads, drawing on a tracking line, etc., consisting of a leather strap that is broad at the middle and tapers at both ends, the broad band being placed around the forehead (or chest) and the two ends attached to the pack or other load.
See also: tumpline
- 1808 (1897) The four middlemen tackled themselves to the towing-line by means of their portage slings.
- 1808 (1897) The four middlemen tackled themselves to the towing-line by means of their portage slings.