Great little track to get your "FIX" after work. Walker Ranch park is a mixed use facility with a paved 1/4 mile track used by Runners, walker and bikers alike. there is also an outside loop, dirt track, with narrow passages, rocks and flats. north end of this trail connects to the GreenBelt for extra long rides.......
Head north on Blanco from I410, about 4 miles and take a right on West road. Walker Ranch Park will be on your left hand side about 2 miles down the road.
http://www.singletracks.com/item.php?c=1&i=3284