Here is a link to a ride I have been doing in Palmer.
It is a perfect 6 mile loop on paved path (about 1/2 mile of road) and starts from park in Palmer.
Once the downhill that leads into Hugh Moore Park melts it can become a figure eight of paved path.
http://connect.garmin.com/activity/24782554
May do this today if the Cutter's Spin does not work out.