You can add to or take away from this extensive loop by stitching together a variety of scenic byways and national heritage areas, but whichever route you commit to, you're going to gain a new appreciation for northern Colorado — and especially for its rugged scenery, from the Poudre Canyon to the headwaters of the Colorado River. Highlights range from the de rigueur Trail Ridge Road and Rocky Mountain National Park to the pristine and nature-heavy beauty of North Park and Walden, the Rawah Wilderness and the Medicine Bow and Never Summer Mountains.
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