You could say spring but in this case, my Garmin Edge 705. I used it today to recon some local new trails and it was really accurate. The Pole Bridge trail network as it's shown below isn't a huge riding area. Once all four loops are done and connected you are looking at a 3 to 4 mile ride if you were just riding everything once.
This place has the potential for some fantastic riding and while the basic network will be 3 to 4 miles, riding each trail segment in both directions will double that distance and provide some fun, challenging singletrack.
The entrance is still a big mess and this access road goes all the up into the center of the property. It is terribly washed out further up the hill.