My GPS was acting up for both of the Peter's Mill trips, so I do not have GPS tracks for them. I now have an external antenna for the GPS, so my tracks are much more consistent now.
We followed the directions in this link [1] to get there. These directions take you to a parking lot right across from the trail head. There is another parking lot at the end of the trail, so they are good places to air down/up if you want to. This trail is pretty low key though. Most of it is a trail rating of 1.5 - 2 max. The berm in the pictures above is the only area that a stock vehicle cannot do, but it is off to the side of the trail.
Note that this trail does require a pass. They have 1 day, 3 day, and annual passes. Here is a list of vendors that sell the passes. [2] This page also has GPS coordinates to the trail heads and trail maps showing vehicle use areas.
[1]
http://www.riderplanet-usa.com/atv/trai ... e_d822.htm[2]
http://www.fs.usda.gov/detail/gwj/passe ... ev3_000477