Precambrian metamorphic rock formed the core of the North American continent during the Precambrian eon 4.5–1 billion years ago. During the Paleozoic era, western North America was submerged beneath a shallow sea, with a seabed composed of limestone and dolomite deposits many kilometers thick.[54] Pikes Peak granite formed during the late Precambrian eon, continuing well into the Paleozoic era, when mass quantities of molten rock flowed, amalgamated, and formed the continents about 1 billion–300 million years ago. Concurrently, in the period from 500–300 million years ago, the region began to sink while lime and mud sediments were deposited in the vacated space. Eroded granite produced sand particles that formed strata—layers of sediment—in the sinking basin.[55]
Another one of the state’s most popular skiing and snowboarding destinations, Steamboat Springs may be a winter wonderland during the chillier months of the year, but the summer brings an endless landscape of green dotted with brilliant wildflowers. This is when this Wild West town really comes alive, with visitors enjoying fly fishing, inner tube rides and rafting trips on the Yampa River, endless scenic hiking and mountain biking trails, and natural hot springs that are ideal for soothing sore muscles afterward. If you can be here around late June/early July, you can attend the legendary annual Hot Air Balloon Rodeo and Art in the Park festival which boasts an extensive display of colorful hot air balloons along with some 50 artist vendors, live entertainment, food and drink vendors, and an interactive children’s art area.