Just a heads-up for anyone exploring the forest service roads in BC. I found this great new book that gives detailed route information with topgraphic maps and GPS data. It's an ebook so it can also be downloaded into a PDA.
The first volume covers the area between Squamish and Lillooet (basically the Whistler area - future home of 2010 Olympics).
I don't have any affiliation with them at all so this is not a sales pitch. I'm just excited about the book because it's what I've been looking for ever since I bought our Sequoia and I like to support good products. I'll definitely be hitting the trails again soon

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Here's the link:
http://www.geopath.ca