Some in Minnesota:
2010 MQ Annual Show and Conference
June 17-19, 2010
St. Cloud, MN
http://www.mnquilt.org/
Next major Quilting on the Waterfront (QTW) event:
October 14 - 16, 2010
(this one is in Duluth, MN)
http://www.quiltingonthewaterfront.com/
http://www.quiltingpathways.com/shows/calendar.html
This one lists shows in multiple states by date. Road trip anyone?? :-)