At Boulder, Colorado, there’re
rock formations called “Flatirons” consisting five large numbered Flatirons
ranging from North to South as well as east slope of Green Mountain. The Flatirons were recognized as the
"Chautauqua Slabs" circa 1900 and "The Crags" circa 1906. “The
Flatirons often refers to these five alone. Moreover various additional named
Flatirons are on the southern part of Green Mountain, Bear Peak, and amongst
the surrounding foothills. It would be really hard to locate another location
in the country where such a widespread variety, from scrambling to hard
"Head Point" routes exist so close to a major metro area. Geologists
believe the age of these rocks formation as 290 to 296 million years; they were
lifted and tilted into their present orientation between 35 and 80 million
years ago, during the Laramide Orogeny.
There are two hypotheses
regarding the origin of the current name, one based on resemblance to
old-fashioned irons, the other based on resemblance to the Flatiron Building
completed in 1902. The Flatirons comprise of conglomeratic sandstone of the
Fountain Formation, which were subsequently exposed by erosion. Further
manifestations of the Fountain Formation can be located in several places along
the Colorado Front Range, including Garden of the Gods near Colorado Springs,
Roxborough State Park in Douglas County, and Red Rocks Amphitheatre close to Morrison.
If it is your first time climbing
in the Flatirons then you must try to take a guidebook and a map, or better
yet, go with a local. Also, a headlamp can come in handy as well on the journey
home, but that's a story for another day! There’re a few things that needs some
attention, such as there is plenty of poison ivy in places for the sensitive.
Also, there’re mountain lions & black bear that are well-known to wander
these parts. Watch your kids, if you're climbing with little ones. The
Flatirons on Green Mountain are popular destination among hikers and rock
climbers with rock grades ranging from easy (5.0) till world class (5.14b). The Flatirons on Green Mountain are ubiquitous
symbols of the Boulder and abounds with photographs, drawings, paintings and
sculptures. This symbol is normally used in advertisements and marketing
materials and often referred to Tech industry as the “Silicon Flatirons”.