The Epic pass has no black out dates that I am aware of. Pretty much all of the resorts are open at the time you are talking about coming out. March/April. If you are talking later in April possibly flowing into May, then Loveland and A-Basin are really the only games in town at that time. Winterpark and Copper look to be closing April 18th. Keystone, Vail, Breck, Steamboat, Beaver Creek, will all be closing around those dates too. Maybe a week earlier for some, a week later for others. So depending on what you are planning, it could be wide open for ya.