Mountain Biking at Saint Edwards Park in Austin, Texas. The park is located in the Bull Creek watershed. It is the first place I ever mountain biked in almost 19 years ago. We've logged thousands of miles on those trails over the years. Sadly, many of the trails no longer exist since much of the original tract of land (about 95%) is now off limits to practically everyone due to endangered species habitat. Not that there's anything wrong with that..