August 2, 2010
It's been aabout a year and a half since I checked it out, but I think there was a pretty good loop, using Greer, Homestead, Cheeseman ranch, and Elk Meadow trails. I recall it being single track, with some double track mixed in. Maybe I'm wrong. If its double track, its isolated and rolling with no motor vehicles, so still a good ride. Nice forest, good views.
I'll have to go back and get a GPS track for it, and refresh my memory.
The park website has a map.
http://parks.state.co.us/SiteCollectionImages/parks/Parks/Mueller/Maps/MuellerRecreationalTrails.pdf* Review edited 8/2/2010