What part of michigan you moving too? im live in muskegon which is along lake michigan about half way up the lower peninsula. I have two sulcattas. One is 8 yrs old and one is four. I have also inquired on this site about living situations for my tortoises. Since 1999 I have kept them indoors in a 8 by 3 foot horse trough. From about late april to late october they stay outside and have my whole back yard to roam. They are currently 32 lbs and 10 lbs. I now may try and build an enclosure in my detached un heated garage for winters but I want to make sure it is safe