While staying in Estes Park, one day hike I highly recommend is "Estes Cone". It is 6 miles r/t and the peak is at 11K. It starts at the Long's Peak Trailhead for 1/2 mile then follows the Storm Pass Trail for 1-1/2 miles or so. The trail is then marked with cairns and is relatively easy to follow to the summit. The last 50 feet requires some easy (non-technical) rock climbing. The summit is very panoramic and a great place to sit and have a snack or lunch while enjoying the 360 degree view of Long's Peak, Twin Sisters, and others.
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