In case you're in BC an interested in a fun weekend trip, you can check out my report here:
https://jansenaztr750.wordpress.com/2016/03/07/bc-bikepack-trip-1-part-1/In addition to my Strava links (which include the Squamish trails I took), you can get the Sea to Sky GPS file here:
http://www.bikemap.net/en/route/993190-tct-sea-to-sky-squamish-to-whistler/Sea to Sky is a nice trail for bikepacking - wide, smooth singletrack, with bits of road and highway. There is good camping at Riverside Resort, which I mention in my ride report.
Sarah