I'm going to hate on the eastcoast and only list western colleges. All are within 2 hours of at least halfway tolerable-decent skiing.
Within 2 hrs.
Colorado. Montana. Montana St. Sacramento St. UC Davis. Eastern Washington. Southern Oregon. Boise St. Idaho St. Portland St. Nevada-Reno. New Mexico. Colorado School of Mines. Fresno St. Colorado St. Sierra Nevada College. Utah. Utah St. Southern Oregon. Ft. Lewis College. Any Seattle area school. Central Washington.
Within 2-4 hours
Idaho/Washington State (within 2.5 of Schweitzer/Silver Mtn). Oregon/OSU (within 2.5 hours of Mt. Batchlor) Any SF Bay Area school (within 3-4hr of Tahoe) Chico St (within 2.5 of Tahoe)
Other schools with potential? (southwest schools that might not always have good snow)
UNLV (5 hours from mammoth. 3 hours from Brian Head. Within an hour of Ski Las Vegas)
Northern Arizona (20 mins from Arizona Snowbowl. 6 hours from Telluride/Silverton)
Any LA area school (within 1hr of Mt. High/Baldy. within 2hr to Big Bear. 5.5hrs to Mammoth)
Arizona St (within 2 hrs of Arizona Snowbowl. 4 hrs of Ski Sunrise)
I'm probably leaving a shitload of smaller/ private schools out - seeing as I have mostly checked out publics, but care to add any to the list if you may.