I have just recently started mountain biking and im looking for some areas that won't be closed from the fire as Lory State Park and Horsetooth have been closed for a while. Any suggestions would greatly be appreciated.

This isn't going to give you any beta on where to ride to avoid the fire, but I found these sites a few months ago for what its worth.
www.protrails.com/areas/view/4/0/boulder_denver_golden_fort_>>>
www.bigdaddymaps.com/index.htm