DCHP-1 Online
grease trail 
Hist. any of a number of ancient trails leading from the Pacific Coast into the interior of British Columbia, used by Indians for the trade in oolichan oil and other items.
See also: oolichan oil
- 1879 By the second of the above routes oolachen oil was carried far into the interior; and the old trail from Bella Coola and Fraser River is still known to the inland Indians as the "Grease Trail."
- 1932 It was an article of trade in great demand along the many "grease trails". . . .
- 1963 This Grease Trail was so named because along it the Nass tribes carried much oolachan (candlefish) oil or grease to the Upper Skeena River country.
- 1879 By the second of the above routes oolachen oil was carried far into the interior; and the old trail from Bella Coola and Fraser River is still known to the inland Indians as the "Grease Trail."