I am in Michigan. My coop is raised about 2.5 feet off the ground. I have a 4x8 coop. The bottom has an access door, and is completely enclosed with cloth and the bottom against the ground has wire. My coop has and access hole to this area for the chickens to go down into. I do it like this for one reason alone... So, if I do not get out early enough, they can still come out of the coop. I also hang the food under there to keep the mess out of the coop thru the warm months. Also have water under there. I use a long rake from both ends of the under run to clean it out, or I just plug in the leaf blower if I am feeliing super lazy. Now this time of year, the bottom is glassed in on one side to stop the snow and as a protected winter run off the other side so the chooks have somewhere to hang out if they don't want to go in the snow, but don't want to be in the coop. So far though, snow as not been a problem for them, once they realised it wasn't gonna hurt them. LOL. Well, anyway, Thats pretty much why mine is up, so they can go outside at anytime in the morning and wait for me to let them in the yard. Some days I don't get out till 10 am, and they'd like me to let them out more like 7:30 am as soon as the sun is out.