If you have extra time, The Flatirons is worthwhile. These jaw-dropping rock walls flanking Green Mountain have become the symbol of the city, with many Boulder businesses sporting their image as ...

Overlooking Boulder from the city's southwestern edge (near Chautauqua Park), the Flatirons are free to visit every day from sunrise to sunset. If you decide to drive, you'll have to pay a $5 ...

(Matthew Jonas/Staff Photographer) Flatiron ... pictures with the marmot. Yates said OSMP doesn’t focus on Flatiron Freddy’s accuracy as much as on making sure that Groundhog Day in Boulder ...