Below is a link to show current forest fires on google earth.

http://activefiremaps.fs.fed.us/kml/conus.kmz

Also, if you don't already have them, data for the big three trails

AT
http://bbs.keyhole.com/ubb/showthrea...7/page/vc/vc/1

PCT
http://bbs.keyhole.com/ubb/showthreaded.php/Cat/0/Number/215852/page/

CDT
http://www.phlumf.com/travels/cdt/cdt.kml