At about 68 million years ago, the Front Range began to rise again due to the Laramide orogeny in the west.[58][59] During the Cenozoic era, block uplift formed the present Rocky Mountains. The geologic composition of Rocky Mountain National Park was also affected by deformation and erosion during that era. The uplift disrupted the older drainage patterns and created the present drainage patterns.[60]

Update on Jan. 14, 2019: A Rocky Mountain National Park spokesman said Monday the park began using recreation fees to temporarily pay about 10 percent of furloughed workers to clean up the park. They’ve been plowing roads, cleaning restrooms and collecting trash since Saturday. Other staff, such as law enforcement rangers, continue to work without pay during the shutdown. The park is expected to reopen to vehicle traffic on Tuesday, said Kyle Patterson, a Park spokesman who is on furlough.

You’ll feel really spoiled (especially in Vail!) with complimentary WiFi,  complimentary underground valet parking, free breakfast buffet included a surprisingly hefty selection of pastries, breads, fruits, meats, cheeses, cold cereals, and eggs, as well as juice, tea, and coffee. And the outdoor heated swimming pool is worth taking the plunge just for the view.
Outdoor adventurers, skiers, nature lovers and history buffs a return to Colorado year after year for memorable vacations surrounded by spectacular scenery. Colorado is famous for its first class ski resorts such as Aspen, Telluride and Crested Butte and elegant cities packed with cultural attractions, including Denver, Boulder, Fort Collins, Colorado Springs and Estes Park. You can get back to nature in the beautiful state parks where you can admire everything from towering sand dunes and waterfalls to gushing white water rapids and historic scenic railways. Here are the best places to visit in Colorado.
Keystone is the ultimate year-round outdoor playground. Families will discover a wealth of things to do to keep the kids, and themselves happy, with everything from a Kidtopia Play Park, Keystone Science School Day Camps and the summer snow tubing hill to stand up paddle boarding and boating on the lake, miniature golf, GPS Geo-Cache Adventures and dinner wagon rides. Then there are the festivals, like the Model Boat Regata, the Snake River Festival, and Cirque D’Wheels. If you stay at Keystone Resort, the Kidtopia Children’s Theatre hosted in the Quaking Aspen Amphitheatre is free every Friday.
Only a few miles from downtown Denver, Littleton is a historic suburb of Denver with its own charm and history. Its turn-of-the-century houses are witnesses of the rich history while cozy restaurants and bars are inviting and popular. The Main Street has a lineup of independently owned galleries and shops. The Littleton Museum tells the story of the town’s past with its 19th century farm. Town Hall Arts Center presents community-run theater and music events. Littleton has more than 59 parks and two light rail stations with access to Downtown Denver. For outdoor enthusiasts, the Rockies are only half hour away. South Platte Park and Carson Nature Center offer hiking trails and fishing lakes. Pirates Cove Water Park has lap pools, a 35-foot slide, and a tubing river.
Located south of the town of Avon, Beaver Creek is a family-friendly town that combines the convenience of a modern resort with the quaint charm of an alpine village. The long list of activities available here includes outdoor fun like fly fishing, hiking, wine tasting and panning for gold, in addition to mountain 4×4 tours, rafting, skiing and golf. The town also hosts fun activities like movie nights under the stars, kids activities and various group tours.

Situated on Vail Square, The Arrabelle sets the standard for luxurious lodging, while its jaw-dropping setting reflects the romantic heritage and ambiance of the European Alps. Here you’ll find architectural touches of Salzburg, Innsbruck and Prague, along with high-end amenities such as personal butler service, ski valet and even grocery delivery. Look forward to heading to the rooftop for laps in the pool and soaking in the whirlpool together while taking in magnificent Rocky Mountain views. You can also relax and unwind together while indulging in treatments at the property’s RockResorts Spa, which offers even more stunning Rockies vistas. Each one of the spacious suites host impressive features like a living room area with a fireplace, ideal for toasting to your new life together while cuddling up next to its warmth.

Fishing was a popular pastime for early visitors to the park, and it remains so today, with anglers catching several types of trout, including brown, brook, rainbow and cutthroat. Note: A valid Colorado fishing license is required for all persons 16 years of age or older to fish in Rocky Mountain National Park. For current Colorado fishing license fees visit the Colorado Division of Wildlife website.
Explore the nearby great outdoors at the Horsetooth Mountain Open Space or get your adrenaline pumping by rafting on Cache La Poudre River with the Mountain Whitewater Descents Company. Visit Global Village Museum of Arts and Cultures to learn about folk art from all over the world. Take the kids to the Farm at Lee Martinez Park to learn about the farm life and play with baby farm animals.
The Mummy Range is a short mountain range in the north of the park. The Mummies tend to be gentler and more forested than the other peaks in the park, though some slopes are rugged and heavily glaciated, particularly around Ypsilon Mountain and Mummy Mountain. Bridal Veil Falls is a scenic point and trail accessible from the Cow Creek trailhead, at the Continental Divide Research Center.[41] West Creek Falls and Chasm Falls, near Old Fall River Road, are also in this region. The Alluvial Fan trail leads to a bridge over the river that had been the site of the Lawn Lake Flood.[42]
Breckenridge is justifiably famous as one of the best ski resorts in the country, but spending a little time seeking out the off-piste charms of the town can be extremely rewarding. You can explore the thriving arts and culture scene or learn some Breckenridge history on a tour with a local expert – popular choices include the Historic Tour, the Haunted Tour and the Gold Mining Tour. In summer you can go hiking, biking, fishing, paddling and rafting, while in winter everyone heads to the slopes to enjoy world-class winter sport activities and ride the highest ski lift in the country. Things to Do in Breckenridge

Brown’s Canyon National Monument – It’s one of Colorado’s newest national monuments, and also one of it’s most beautiful. A pristine, natural canyon, Brown’s Canyon offers visitors the opportunity to hike, raft, or camp in the headwaters of the Arkansas River. Towering ponderosa pine trees and monolithic boulders greet you along this amazing stretch of white water. We may be biased, but we think the best way to see it is by raft. There is also fantastic camping along the river at various locations. Browns’ Canyon is also close to the small town of Nathrop, which offers a number of hot-springs resorts that are perfect for relaxing after a day of adventuring, including Antero Hot Springs Cabins, Mt. Princeton Hot Springs Resort, and Cottonwood Hot Springs.

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]

No matter what time of year you choose to stay in Estes Park, you will find pleasant weather to suit the outdoor activities of the season. The coldest month is January, with an average high of 38 degrees – excellent skiing and snowboarding weather. July tends to be the warmest month of the year, with average highs reaching 78 degrees. This warmth, combined with the region's low humidity, makes for the perfect climate for hiking, biking, boating, and more.

The Rockies are unbelievable. We explored the Niwot Ridge tundra plateau, speckled with wildflowers of every shape and color, looked down on the layered blue mountain ranges below, while snow-tipped peaks gazed at us from still-greater heights. I felt the elevation only in the difficulty breathing I experienced when walking from Point A to Point B - but we walked for more than three miles. Otherwise, it was the height itself that pulsed through my veins, truly on top of the world.

_{Every summer, Aspen gets taken over by classic music lovers during the renowned Aspen Music Festival and School with more than 300 concerts. Learn about Aspen from Dean Weiler during one of his popular Aspen Walking Tours and pay respect to John Denver at the John Denver Sanctuary you will pass by while hiking the picturesque Rio Grande Trail. Next read: best Aspen restaurants.}
The rugged and elevated landscape and disused mining roads provide a challenging playground for mountain biking and off-road vehicles, while fishermen can head to Molas Lake to cast a line. You can go hiking in the San Juan National Forest, take a four wheel drive along the Alpine Loop Scenic Byway, or savor a scenic ride on the Durango & Silverton Rail Road. Things to Do in Silverton
The Pierre Shale formation was deposited during the Paleogene and Cretaceous periods about 70 million years ago. The region was covered by a deep sea—the Cretaceous Western Interior Seaway—which deposited massive amounts of shale on the seabed. Both the thick stratum of shale and embedded marine life fossils—including ammonites and skeletons of fish and such marine reptiles as mosasaurs, plesiosaurs, and extinct species of sea turtles, along with rare dinosaur and bird remains—were created during this time period. The area now known as Colorado was eventually transformed from being at the bottom of an ocean to dry land again, giving yield to another fossiliferous rock layer known as the Denver Formation.[58]
You can climb and slide on the dunes or test your boarding skills cruising down the sand. On hot days, children and even adults enjoy splashing around in the Medano Creek that runs along the base of the dunes. Hiking trails run through the forest on the edge of the dunes. The four-wheel drive Medano Pass Primitive Road opens up some unique terrain, and car camping sites are located along the roadside. Regular camping is available at the Pinon Flats campground, which offers both tent and RV campsites.
^{Depending on when you choose to stay in an Estes Park vacation rental, you may be able to catch family-friendly events like the annual Teddy Bear Picnic or Longs Peak Scottish-Irish Highland Festival. If you aren't able to make it to those events, don't worry: you can always pick up some local history at the Lula W. Dorsey Museum or Stanley Steam Car Museum. Visit the local shops and galleries like the Wild Spirits Gallery or Alpenglow Images & Accents to see some local photography, woodworking, jewelry, and other crafts or pick up a souvenir or two for friends and family back home.} 

Known as a world-class ski destination, Aspen is beautiful year around and offers activities and attractions for all ages. Skiers can challenge their skills on the magnificent steeps, slopes and glades of Aspen Mountain or Ajax, on rugged Aspen Highlands or enormous Snowmass. Take a 14 minute ride with the Silver Queen Gondola to the top of Ajax Mountain for the spectacular views of the mountain peaks, the city below and tall evergreens all around you. There are bluegrass concerts on Sundays.

^{If you wish to have a romantic dinner outside of the hotel or resort you are staying at in Colorado Springs, you have to go to the Pepper Tree Restaurant. Its stylish architecture makes the restaurant one of the most beautiful in Colorado. You can enjoy spectacular views of the city skyline from the restaurant while feasting on a romantic dinner with your love. The restaurant serves high quality seafood, steak,s and legendary wines. Dining at the Pepper Tree Restaurant is a romantic and memorable culinary experience.}
In the shadow of Great Sand Dunes National Park and Pre­serve, the quirky town of Hooper sits atop a natural artesian hot spring, with water flowing year-round into the family-friendly Sand Dunes Pool. On the same property, The Greenhouse is an all-indoor, all-adult oasis with three small soaking tubs and a 10-by-75-foot zero-entry pool. The Greenhouse also has a 10-person sauna, indoor gardens and an onsite bar to help you stay even toastier. 
Situated on Vail Square, The Arrabelle sets the standard for luxurious lodging, while its jaw-dropping setting reflects the romantic heritage and ambiance of the European Alps. Here you’ll find architectural touches of Salzburg, Innsbruck and Prague, along with high-end amenities such as personal butler service, ski valet and even grocery delivery. Look forward to heading to the rooftop for laps in the pool and soaking in the whirlpool together while taking in magnificent Rocky Mountain views. You can also relax and unwind together while indulging in treatments at the property’s RockResorts Spa, which offers even more stunning Rockies vistas. Each one of the spacious suites host impressive features like a living room area with a fireplace, ideal for toasting to your new life together while cuddling up next to its warmth.