Great trail system!! The North side has lots of flat mountain bike trails. The 32nd street railhead has 4 parking spots. I would recommend going to the Dreamy Draw trailhead where there is a lot of parking. Dreamt Draw is on the east side. These trails are far prettier than the north side but steeper and rockier, so a bit harder to bike. Views are great from the top of the different hills. Trails are well marked.