I've always liked running a "Potter Bike Trail." Why? Because he makes such damn good trails. I also don't mind running a typical bike trail as the tires tend to smooth it out and when it's soft, I get to mash down bike corduroy. Works out for all, as far as I'm concerned.
To find the location, I sneaked a peek at a mountain bike website to get an image of the trail, printed it and used it as a map. I had to do some sleuthing on The Goog to determine the start location. Having the "map" worked out pretty well, as I only missed a few turns and added only about 1/2 mile overall. After cleaning the mistaken turns and mapping it cleanly, it shows a 8.97 mile route. I'll call it 9. Any arguments? I didn't think so.
(As an aside, there is a discrepancy on Google Earth for a route when the distance is shown using "Get Info" and when the distance is shown on the Elevation Profile. I don't know why, but on this particular journey, GI =8.97, and EP= 8.82.)
Below is a GE screen shot showing the route and elevation profile. The Lat/Long displayed is the start location, if you want to give the route a go yourself.