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]
There is also plenty for you to explore in the surrounding areas. If you head south, you’ll reach Red Rocks Park, which is known for its red rock formations. Head east, and you’ll find yourself in Denver, where you can experience a taste of the city, complete with shopping and dining options. Head west, and you’ll be in the Rocky Mountains, with options to ski.
The Alps Boulder Canyon Inn is an award-winning boutique bed and breakfast in the heart of scenic Boulder Canyon. Offering an unforgettable Boulder experience, the Inn features luxurious accommodations, excellent cuisine, and outstanding service. Surrounding by Boulder's magnificent mountain parks and just a short stroll from downtown Boulder and all its attractions, the Inn is an ideal place for both business and leisure travelers to take advantage of everything the town has to offer.
Old World meets ghostly charm at the 135-room Stanley Hotel in Estes Park,  just an hour from Denver, Colorado. Located six miles from the Rocky Mountain National Park in the shadow of Pikes Peak, the Stanley is a “shining” example of romantic, secluded and haunted. Make it a weekend getaway as there is so much to do and see in the surrounding area, from visiting Rocky Mountain National Park to exploring the beautiful downtown.
A small town in the southwest corner of Colorado, Durango offers visitors a wealth of fun-filled activities to fill up a weekend away. Explore the downtown area to see a National Historic District lined with charming shops, eateries and hotels in 19th-century buildings. The area also boasts an array of outdoor adventures, including excellent opportunities to hike, bike, fish, while those wanting to kick it up a notch can also indulge in snowboarding, horseback riding and white water rafting. A ride on the famous Durango & Silverton Narrow Gauge Railroad is a must, where visitors can soak in breathtaking mountain views from a steam-powered engine train.
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.
Vail doesn't always fit with everyone's budget, particularly if you want to spend a night during the high season. In the vicinity are a number of small towns and villages that are less well known but more affordable and also worth a visit. Although not a ski resort, Frisco is a charming mountain town and one of the best places to visit in the area. This is a nice base if you are exploring the I-70 Corridor around Vail and Beaver Creek. The town has all kinds of quirky cafés, shops, and restaurants, and a true mountain vibe. Just up the way from here is the small town and ski resort of Breckenridge, at an altitude of 9,600 feet.
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.
Looking for a great Hot Tub Cabin in Estes Park, Colorado? Stonebrook Resort on Fall River in Estes Park Colorado has the most tranquil hot tub cabins in Estes Park! We're located at the base of Deer Mountain, we are along the Fall River. Our hiking trails meet up with Rocky Mountain National Park. We are conveniently located two miles from downtown Estes Park, Colorado and two miles from Rocky Mountain National Park.
Located one mile from the main entrance of Rocky Mountain National Park and two miles from Estes Park, Rams Horn Village Resort offers 46 luxury cabins, a heated outdoor swimming pool in the summer, three outdoor, year-round hot tubs, a fitness center and a playground on over seven acres of landscaped grounds. Every amenity at Rams Horn is free to use with your reservation and every cabin will turn into a second home.
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.

It may be summertime but Snowmass has returned to the Ice Age with the Snowmass Ice Age Discovery Center that features the most significant Ice Age ecosystem find in Colorado history (and it’s free). Touch a mastodon tooth, marvel at a half-sized 6-foot Wooden Mammoth Skeleton, do a dig of your own or a daily Ice Age Discovery Hike by  Environment Studies.  Visit the Snowmass Rodeo on Wednesday nights (June 12- August 28) and sign up your kids for the Calf Scramble and Mutton Busting. Ride the Elk Camp Gondola up Snowmass Mountain where the Elk Camp Restaurant will open for activities including downhill biking, dinner, campfires, live music, movies, Stryder Park and Kid’s Playground on Friday evenings. Try your hand at some slopeside bowling at the new bowling alley below Venga Venga Cantina featuring eight full-sized lanes, a lounge area with full bar, wood-fired oven pizzas, upscale bar food and more. Then, get inspired at the Anderson Ranch Arts Center, a stellar place for kids of all ages to take workshops that include sculpture, photography, painting, beading, and mask-making.
Imagine taking a trip on a train with your partner, very Old World romantic, isn’t it? The Cumbres & Toltec Scenic Railroad offers several options for guests who are looking for romantic getaways. The railroad runs between Chama, New Mexico and Antonito, Colorado. There are several trips available for you to choose including a full-day trip, a half-day trip, a sunset trip, and galloping goose #5. The sunset trip is probably the most romantic option of all. Depending on the route you choose, the fare starts from 95.75 USD.
Estes Park cabins, homes, rooms, and suites bordering Rocky Mountain National Park! Enjoy wood-burning fireplaces and fully-equipped kitchens with a hot tub on-site. Free Wi-Fi, dog friendly lodging (w/ conditions). Spectacular views and great wildlife watching! Easy access to hiking, snowshoeing, back-country skiing! The perfect place for your mountain getaway!  McGregor Mountain Lodge Details
Located just a few miles to the northwest of Denver, Boulder is a college town nestled against the foothills of the Rocky Mountains. Boulder’s inhabitants are best known for their healthy lifestyles, and outdoor activities are plentiful in and around the city. Boulder Creek cuts straight through the town and is lined with walking and biking trails. The four-block pedestrian-friendly Pearl Street Mall features outdoor performers in all but the most inclement weather. A drive up Baseline Road on Flagstaff Mountains rewards visitors with spectacular views, and there are picnic areas and hiking trails to enjoy at the summit as well.
The land that now houses the cozy Rustic River Cabins was originally declared a homestead of 160 acres in the Big Thompson Canyon in 1903. Through a series of owners, name changes and new buildings, it became Rustic River Cabins in 2003 and now has seven all-season, pet-friendly cabins which sleep between two and eight guests and feature a fireplace, a full kitchen and private hot tubs in five. They were originally built in the mid-1940s and offer a cozy charm that’s perfectly suited for a mountain getaway.

The sun made us lazy, and after following Brian as he made his way upstream I found a wider expanse of sand and gravel, promptly plopping down on a pair of flip flops I had brought in my backpack as a make-shift seat. After identifying the northern harrier hawk over my head, and the savannas sparrows and red-winged blackbirds perched precariously on reeds across the water, I took out my knitting project. I didn’t have to worry about losing Brian; in the valley I could see for miles in both directions.
×