San Isabel National Forest
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Geography
When Were Mount Yale Formed?
Mount Yale Mount Yale is a majestic summit within the Collegiate Peaks in the Sawatch Range of the Rocky Mountains…
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Geography
When Were Mount Antero Formed?
Mount Antero Mount Antero, the highest summit of the southern Sawatch Range in the Rocky Mountains of North America, stands…
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Geography
When Were Mount Massive Formed?
Mount Massive Mount Massive, known in Arapaho as Hiwoxuu hookuhu’ee, stands as the second-highest summit of the Rocky Mountains of…
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