About 300 million years ago, the land was uplifted creating the ancestral Rocky Mountains.[55] Fountain Formation was deposited during the Pennsylvanian period of the Paleozoic era, 290–296 million years ago. Over the next 150 million years, the mountains uplifted, continued to erode, and covered themselves in their own sediment. Wind, gravity, rainwater, snow, and glacial ice eroded the granite mountains over geologic time scales.[56] The Ancestral Rockies were eventually buried under subsequent strata.[57]
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At one time, Niwot was an important hunting and fishing area for American Indians. A railroad extension followed the arrival of Gold Rush miners, and many of the original buildings are part of Old Town in the National Historic District. Located 9 miles from Niwot, the Boulder Reservoir is a popular spot for swimming, boating, and fishing, and there are extensive trails to hike or bike throughout the area. Book your stay at the tranquil Niwot Inn and Spa, or choose a rural escape, like a fully restored 1890s farmhouse where a creekside bike path connects you to the cottonwood-shaded Pearl Street in Boulder. Enjoy a romantic evening at Colterra Food & Wine or the popular Sugarbeet in nearby Longmont.
19th-century ghost town, and hosts its own fabulous mineral hot springs. The five-star property enjoys a backdrop of aspens and the dramatic San Juan Mountain Range, situated about 30 miles southwest of Telluride. It’s the perfect place to disconnect from the chaos of the modern world and connect with the one you love. Nearby you can go heli-skiing, rock climbing or hike miles and miles of scenic trails. It hosts a ring of historic log cabins that now serve as luxurious retreats as well as other historic buildings that house a lavish spa, a well-stocked library and a saloon with wagon-wheel chandeliers. 
Popular during both the winter and the summer, Crested Butte offers year-round activities that appeal to outdoor enthusiasts. Soak in the crisp mountain air after taking the Silver Queen lift up to 11,875 feet up to see Crested Butte from above, visit the pedestrian-friendly city center with its myriad of locally owned shops, or choose your pick between summer and fall mountain biking and the area’s numerous trails. Those with little ones can head to the Trailhead Children’s Museum, Crested Butte Mountain Heritage Museum or find swimming and hiking at Meridian Lake in the summer.
After an amazing day viewing the natural beauty of Garden of the Gods and Pikes Peak-America’s Mountain, your significant other and you can relax by having a glass of wine and dinner in Old Colorado City. Old Colorado City was founded in 1859 and features old brick structures, quaint alleyways, boutiques, galleries and restaurants with cuisine from all over the world. It makes a perfect setting for a romantic dinner for two.
The Experience: If Aspen isn't quite your mountain town scene, head to Vail instead. It's equally as idyllic (it was modeled after European mountain resorts), pedestrian-friendly, and lovely, but the town itself is more of a square in a village with a small collection of boutiques and restaurants for visitors. Ride up and down the gondolas for mountain views in every direction and ski the unique back bowls. It's also closer to Denver, making it easier to get to and, therefore, a little more crowded during peak seasons.
There are several Front Range towns that have fun winter attractions that are worth experiencing. Next time you’re passing through Idaho Springs, relax at Indian Hot Springs or go snowshoeing in the Arapaho National Forest. Georgetown hosts ice races on its frozen lake. While in Evergreen, make use of the giant frozen lake by ice skating or fishing.
