FAYSTON, Vermont — Back-to-back nor’easters that have pounded New England have given ski resorts a late-season blast of their life’s blood, luring skiers and snowboarders to the slopes, and allowing smaller ski areas that rely on natural snow to stay open. From Vermont to Maine, skiers and riders were cheering the mounds of snow. “It’s amazing,” Tim Austin of Brentwood, New Hampshire, said as he waited Thursday to board the single person chairlift at Mad River Glen in Fayston, Vermont. March storms have dumped more than 5 feet of snow on Vermont resorts, with Mount Snow in southern Vermont living up to its name; 66 inches have fallen just this month there, according to the Vermont Ski Association. “It’s the best March in years,” skier Gregg Fitzgerald of Starksboro, Vermont, said as he took a break at Mad River on Thursday. And resorts have the added benefit of snow in the region’s down-country cities that gets people thinking about heading to the slopes to ski. In coastal Maine, Camden Snow Bowl ordinarily stays open until mid-March, General Manager Beth Ward said.