10k of Connecting Loops Professional Review and Guide
"Since its opening in 2014. In addition to an extensive network of trails, there is a zip line, an adventure tower, playing fields, bungee jumping, and the 64,443-square-foot, two-story Miller Activity Complex, offering artificial turf fields for indoor soccer, lacrosse, and football, as well as an aquatics center. Trails are marked with colored arrows on signposts to indicate the loop corresponding with the trail map. Mostly singletrack, the trails are undulating and relatively smooth, with an equal amount of ascending and descending, sometimes including switchbacks as well as long, flat sections. Several races are annually staged on the trails, varying in length from 5K to 21K.
This route includes the Gold Loop and Purple Loop trails in Philip S. Miller Park, as well as trails in the 367-acre Ridgeline Open Space, accessed via a footbridge over West Wolfensberger Road."