Soaring in "western" Canada?

Hi,

I'm planning a trip to Canada for may and/or june this year. I plan to visit
roughly the region west and North of Edmonton, say between Yellowknife and
Vancouver :-)
Does anyone know if there are any soaring operations that would give me an
opportunity to fly there? Is there a thing like a map that indicates where
these operations are?

Then: I have a Dutch licence (gliders only). What would be needed to get
permission to fly in Canada?

Regards,

André