I am also interested in this. One website I found says:
"Saturday April 16, 2011 6:00 AM - 12:00 PM
195 MIDWAY ST. IMLAY CITY,MI 48444 IMLAY CITY EASTERN MICHIGAN FAIRGROUND
195 MIDWAY ST.
IMLAY CITY, MI 48444"
Last year was our first year (for chickens iand the swap) and we got there at 6:00 with flashlights. If you are looking for something specific there is a lot to offer. The only issue I had was my 7 year old that wanted to leave too soon. Lots of venders we still arriving when we left at 8:00. Thanks to BYC I have a lot more knowlege and am looking forward to this year.