Looks like all their greens were groomed? I’ll try to see if I can see the GPS data on when.
My guess is summit was groomed out of the gate at 4pm and then snow fell on top of it. Which goes to the age old question if groomed and snow falls on it, do you remove it from the grooming list? We used to get hammered calling stuff groomed when it then snows overnight and Guest Services gets bombarded with “you say 65 groomed trails and I couldn’t find one of them!”
Lynx, Polecat, Upper Catapult, Middle Wildcat and Bobcat are groomed with some fresh powder --- nice.