Hike of the Week: See an Up-close View of the Boulder Flatirons
From miles away, travelers can see the Flatirons that rise out of the 280-million-year-old Fountain Formation on the western side of Boulder. On a clear day, these giant slabs of red sandstone are visible from Interstate 25 more than 20 miles to the east and from Denver about 30 miles to the south. The most […]
Source: eptrail.com