I enjoyed the route from the gate at the end of the forest road coming up from the Gale River Loop Road.
My notes: Follow the logging road to the clear cut, when the road takes a sharp left turn, follow a herd path off to the right, over a couple streams and up to the base of the Nubble/Haystack. Wonderful view from on top of Haystack. Follow herd paths up the ridge from there to a campsite with two moose antlers hanging from trees, and eventually bear to your right to join up with the slide. Be especially careful on the slide if it is wet! At the top of the slide it splits in two. Take the strip of solid ground in the middle, and it will lead you through relatively easy stuff to the ridge, although there isn't much of a herd path. The cannister is on a blowdown that is just about horizontal. Took me 90 minutes car-to-jar, but I didn't stop on Haystack and I got unnecessarily caught in some thick stuff just before I got on the slide. On the other hand, I had a fine dry day, so depending on weather, climbing fitness, and luck with route finding it might take you a bit longer. Good luck!