Originally Posted by mtnbikerskierchick
A-basin usually stays open the latest. They did close early to mid-June last year, but part of that was due to an in-bounds avalanche. A-basin largely planned on staying open for the 4th of July and had the snowfall to do so. But, then, a rare wet-slab avalanche happened, causing some folks to be scared (1 man died) and others to just not want to ski there b/c the best things to ski were trashed by the avalanche. It is likely that A-basin will be open for at least part of your trip in early June, but how long they stay open is a factor of mother nature and money.