MichealJ12681, try this site out. http://www.4x4trails.net/ It has a pretty good list of local trails and maps. I've done Red Cone pass in Summit county and it was pretty spectacular! It say's it's a 7, but I did it in a stock 2000 Ranger without getting stuck. There are also some trails just north of Boulder that are pretty popular, but I haven't been up there in quite a while. US36 though town to Left Hand Canyon rd. Go west. The trails are a couple of miles up on your right, you can't miss them. Have fun!