Never bothered to count. Haven't skied outside the U.S. yet.
For 2019-20 I added Bryce in VA and Cataloochee in NC because of the Indy Pass. Added Deer Valley using Ikon. Spent a couple hours at Howelsen Hill in Steamboat Springs before the drive to Denver airport.
EDIT 3/4/21: added Canaan Valley, Monarch, Wolf Creek, Copper, Loveland
EDIT 2/25/23: added Catamount, West Mountain, Windham from Feb 2022; Winter Park in Dec 2022
EDIT 6/1/24: added Vail, Beaver Creek, Keystone, Breck, Crested Butte from 2023-24
EDIT 4/22/25: added Tamarack, Brundage, Bogus Basin, Brian Head from 2024-25
EDIT 4/26/25: added Grand Montets, Chamonix area, France on 4/25/25
SOUTHEAST (mostly since 2004)
Sugar, NC
Beech, NC
Cataloochee, NC (Indy)
Wintergreen, VA (Indy, Jan 2025)
Massanutten, VA (home mountain since 2004-05)
Bryce, VA (Indy)
Snowshoe, WV
Winterplace, WV
Timberline, WV
Canaan Valley, WV (Indy)
MID-ATLANTIC
Blue Knob, PA (DCSki gathering 2013, 2016)
Elk, PA
Whitetail, PA
Roundtop, PA
Montage, PA
Plattekill, NY
Belleayre, NY
*Hunter, NY
*Windham, NY
NORTHEAST (mostly 2013-19)
North Country School campus ski hill, NY, rope tow (1968-70)
Whiteface, NY (1968-70 with NCS, 2014-2016)
Gore, NY
*West Mountain, NY (Indy)
*St. Sauveur, QUE
*Tremblant, QUE
Stowe, VT (3 days in 1970 with NCS, 2014, 2017)
*Smuggler's Notch, VT
Mount Sunapee, NH
Loon, NH
Wildcat, NH
Tenney, NH
*Attitash, NH
*Bretton Woods, NH
Waterville Valley, NH
*Cannon, NH
Wachusett, MA
Jiminy Peak, MA
*Berkshire East, MA
*Catamount, MA/NY (Indy)
Sunday River, ME
Killington, VT
*Pico, VT
*Sugarbush, VT
*Mad River Glen, VT
*Stratton, VT
WEST - mostly after 2008
*Mt Hood Meadows, OR
Mt. Bachelor, OR
Heavenly, CA/NV (Mar 2000)
*Kirkwood, CA (Mar 2000)
Homewood, CA
Alpine Meadows, CA
*Sugar Bowl, CA
Squaw Valley, CA
Northstar, CA
Mammoth, CA
Mt. Rose, NV
Bridger, MT
Big Sky, MT
Grand Targhee, ID/WY
Jackson Hole, WY
Sun Valley, ID
Tamarack, ID
Brundage, ID
*Bogus Basin, ID
Alta, UT (1970, 1982, regularly starting 2008)
Snowbird, UT
Brighton, UT
Solitude, UT
Deer Valley, UT
Snowbasin, UT
Powder Mountain, UT
Brian Head, UT
Steamboat, CO
*Howelsen Hill, CO
Arapahoe Basin, CO
Snowmass, CO
Aspen Mtn aka Ajax, CO
Aspen Highlands, CO
Buttermilk, CO
Telluride, CO
Winter Park, CO
*Monarch, CO
Wolf Creek, CO
Copper, CO
*Loveland, CO
Vail, CO
*Beaver Creek, CO
*Keystone, CO
*Breckenridge, CO
Crested Butte, CO
Taos, NM
* Santa Fe, NM
OTHER
* Grand Montets, Chamonix area, FRANCE
* - 1 day only