Many thanks to Coby for invalidating an hour of my Sunday with a link to an interactive google maps overlay of all the trails in Utah...yeah, its big. 

Check out the map here

http://www.skidmap.com/

and a link to the project here

http://skidmap.com/project/

I think I will make this a page in the future so it can be easily referenced.  Thanks Coby for making my map look like a chump.  Also, Word is this map tells you trail conditions, more on that later.