Those are great. I lived up there a couple years and never saw then. Then on night driving across US 30 in Idaho, there they were. Not as nice as what you got though. Years ago there was a bank in Wasilla, north side and east side, that had several hanging on the wall.
The Auroras were a lot more active from 2011-2013. But this year they have been quite nice. Years ago I saw some of the most beautiful Auroras over by Summit Lake in September, but back then I didn't have a digital camera, and had no idea how to take photos of them.
These were taken by Chena Lakes, in North Pole last September: