Breckenridge’s celebration of snow , starts Sunday. Who the heck is #ullr?

Ullr Fest, #Breck’s celebration of snow, starts Sunday. Who the heck is #Ullr? Find out here: http://t.co/ajhzu9ZskF pic.twitter.com/YgaSebIzeG

— Breckenridge Resort (@breckenridgemtn) January 9, 2015