What is the Aspen Ski Season?

Travel Info
I am planning a trip next year and would like to go ski-ing in Aspen and then onto Las Vegas. Its far in the future but I know the weather in Vegas is lovely around May and I wondered how long the Aspen ski-season is - help please!

Travel Tips

Most ski resorts don't stay open just because there's snow on the ground - they can't guarantee that the staff can stay, so they have definite opening and closing dates to make sure there are enough people to run the lifts, etc.

Here is the schedule for Aspen and the surrounding mountains for this ski season. It should be roughly the same next year:

2006-2007 Operating Dates
Snowmass November 23, 2006 - April 15, 2007
Aspen Mountain November 18, 2006 - April 15, 2007
Aspen Highlands December 9, 2006 - April 1, 2007
Buttermilk December 9, 2006 - April 1, 2007

NOTE: There would be skiing at Arapahoe Basin in early May. Because they are at 12,000 feet, they stay open until June, although the skiing can get pretty slushy in the spring. If you must go skiing en route to Vegas, it can be had.

Others
Starts around Thanksgiving (sometimes the weekend before if the snow shows up early) and closes mid April. A very few resorts may be open past April 15th and some close a week earlier.
They shuold be sking into May but if they don't have a winter like this year, it might be rock skiing. Go early in May if you can.