I found a few sites with bcadventure.com being the best I saw. Great topo, bug and misc specific lake info.

My past Williams lake area trips have all been in late may/early june and they were fishing well but didnt know how the current spring hatches were going that far north. Anyone ever fished Dragon?

One particular fly only lake has a 4-8lb average with many in the 8-12+ range...thats the one on my mind right now. cheers