There are about 9 miles of meandering singletrack tucked into this roughly 1/2 mile by 1 mile plot. The trails cover typical prairie top with a few drops into various drainages and range from novice to easy intermediate (small rock features and tight turns). Most of the system is out in the open, but there are a few stands of seasonal trees. These trails are maintained by Girl Scouts and there is an honor pay system. The trails are named after girl scout cookies.
Review: I enjoyed the afternoon out at pitcher pump. Granted it doesn't have lots of miles of various terrain and trials for being just outside the city of Amarillo this is a sweet spot to go and ride. It's got a creek bottom with trials all around it that I enjoyed- if palo duro wasn't 20 or so miles away this place would be much nicer as it's difficult to compete with the canyon. For what it is it's a nice place to put a few miles on the bike. It has some climbs, decent drop off, loose rock and cliffs. As to go through the fence I would go left and follow the fence trail first. Have fun
Review: This trail network is nicely accessible to the city of Amarillo and provides some nice singletrack on the otherwise uninteresting (for biking) prairie. You can ride the full 9 miles in an hour or so and there won't be much challenge along the way, but it makes for a good quickie if you're in the area. Be sure to pitch in for the Girl Scouts who maintain the trails. For about what you pay for a box of Thin Mints, you can ride the Thin Mint Trail.