I am no longer in that area. Sorry.

They have a pretty well stocked store. It will be pricey, and not as many choices as a regular grocery store, but nevertheless, they do have quite a bit of supplies.

Glacier raft company or Great Northern Rafting are probably your best bet. You are probably going to want to have a high clearance utility vehicle to get the canoes to Bowman. It's about an hour drive from those places (in West Glacier) to Bowman.