There is a UVM Freestyle Ski Team that you should definitely get in contact with, the president is Alev on here.
Close Mountains:
Stowe - 50min - best parks and overall mountain
Sugarbush - Little over an hour, really good mountain as well, awsome rails and jibs
Mad River - Tiny bit past Sugarbush - best tree skiing in the east, no parks and long lines on weekends, but unbelievable mountain
Bolton - 30 min, small, but really fun w/ night skiing
Jay - 1hr 15min - Great tree skiing, I think it's incredibly overrated, but many people love it
Smuggs - Mellower feel, slow lifts, bad parks, but awesome tree skiing and side country
Killington - Hour and a half, overrated in my opinion as well, but people love it. No one goes to Killy though
Hope that helps