Gotta read my full list, But I've done most of New England and Tahoe.
Starting from the South;
Mohawk, CT
Sundown, CT
Catamount, MA/NY
Jiminy Peak, MA
Butternut, MA
Wachusett, MA
Berkshire East, MA
Mount Snow, VT
Okemo, VT
Killington, VT
Pico, VT
Stratton, VT
Bromley, VT
Bolton Valley, VT
Burke, VT
Sugarbush, VT
Stowe, VT
Jay Peak, VT
Sunapee, NH
Ragged, NH
Loon, NH
Cannon, NH
Kirkwood, Tahoe
Heavenly, Tahoe
Homewood, Tahoe
Alpine Meadows, Tahoe
Squaw Valley, Tahoe
Mount Rose, Tahoe
Diamond Peak, Tahoe
Northstar, Tahoe
Sugar Bowl, Tahoe