The Rocky Mountain Irish Festival held in Fort Collins, Colorado is a fairly recent event. They will hold their 3rd festival between August 25 - 28, 2011 at the Larimer County Fairgrounds between Fort Collins and Loveland. This festival has music and a number of other attractions that can make it look more like a circus than your usual Scottish or Irish Festival. The music and the food can make the trip worthwhile for anyone within driving distance of north central Colorado in late August.

http://fortcollinsirishfestival.com/...tpage&Itemid=1