Summit County. Most likely staying in Breck, riding a few days there and maybe Aspen/Snowmass, maybe Loveland.
Flights are retarded cheap right now on Southwest you can get them for $85 each way if you don't mind taking either the first flight in the morning (630am) or the last flight in the evening (730pm).
We're flying in on the late flight Thursday 3/7, landing Denver at 830pm, puts us in Breck by 11pm, get a full night of sleep, and then shred all day Friday, Saturday, Sunday, and most of Monday. Flying home on the late flight Monday, departs Denver at 650pm.
Since we have to fly home Monday, I'm thinking we'll end up at A-Basin or Loveland that day so we have a shorter drive to the airport in the afternoon.