Finally, went the whole length of the trail.  Started at Home Depot.Then, went down past the food courts, to the other end and back.  The full trail is approximately 3 miles, each way -- counting the sidewalk from Home Depot to the begining of the trail.  Most of the way is crushed granite.  A few spots are sidewalk.  There is a nice parking lot at the far end, on Tom Miller Street, and lots of access points along the way.