Sunnyside Trail begins with a long brutal climb up Red Mountain. Once up in the trees the trail flattens out and traverses along the side and back of Red Mountain. The end of the trail (The Plunge) is a skinny and fast descent into Hunter Creek Valley. *Many people ride up Four Corners Road and either take The Plunge back into Hunter Creek Valley or they come down the front side of Red Mountain (The beginning of the trail).
Start in Aspen. Take Cemetery Lane down past Henry Stein Park on the left. About a half mile past the bridge on Cemetery Lane there will be a parking lot on the left. Some people choose to start in Hunter Creek which is an easier ascent.
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