RMR's cat skiing made little sense, virtually all south facing and poachable from the resort.
Great Northern was the second cat operation in B.C. formed in the late 1970's. I guess long time owner Brent must have retired/sold. They definitely did not offer day skiing when I was there in 2005.
Of all the cat/heli trips I've done, this one was unquestionably the worst, coming after 4 days of torrential rain.
http://www.firsttracksonline.com/boards/viewtopic.php?t=606
I later found out that most operators rain-checked customers to the next season because conditions were so bad, but Great Northern was unfortunately not one of those.
Great Northern's Lodge is down at the road not up in the ski terrain. So even if staying there you have a long cat ride in the morning and a long ski down a south facing cat road at the end of the day. Once up there yes the terrain looks good. It tops out at 7,200 so very little above the tree line.
That sounds about right. I would expect well under 10K of skiing, not a good value for $589 IMHO. K3 has the best day skiing reputation in that vicinity though I have not been there myself.