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]
Categories: IUCN Category IIRocky Mountain National ParkRocky MountainsHistory of the Rocky MountainsArchaeological sites in ColoradoBiosphere reserves of the United StatesCivilian Conservation Corps in ColoradoNational parks in ColoradoNational parks of the Rocky MountainsProtected areas established in 1915Protected areas of Boulder County, ColoradoProtected areas of Grand County, ColoradoProtected areas of Larimer County, ColoradoProtected areas on the Colorado River1915 establishments in Colorado
Leave the fast lane, cross our covered bridge to simple serenity in a cozy cottage, suite or vacation home in towering pines along Fall River. Bask in hot tub bubbles. Warm to the scent and sizzle of a wood-burning fireplace. Fall asleep to the river's lullaby. Roam 30 acres adjoining RMNP. Enjoy the serendipity of wandering wildlife and friendly gatherings in our library.  Castle Mountain Lodge on Fall River Details
Located near Estes Park Colorado and only a few hours from Denver, the park is open 24 hours a day 365 days a year! Boasting over 300 miles of trails and encompassing 415 square miles this truly is a Rocky Mountain High! With such an amazing variety of wild creatures and unbelievable scenery, RMNP, attracts visitors from all over the world. Enjoy the magnificent sites as you drive, hike, bike or take the public transportation. As spring begins to arrive in the recreational opportunities in the park will get better and better.

If you love the great outdoors but also want luxurious comfort on your vacation, let the Cabins at Rams Horn Village Resort be basecamp for your Rocky Mountain Getaway. Our western-styled Cabins are the definition of Rocky Mountain comfort w/ all the modern conveniences.  Each cabin is its own private retreat from everyday cares, allowing families & friends to come & play together, & build lifelong memories.  Rams Horn Village Resort Details


Zach Zehr, an avid backcountry adventurer, spends a lot of time in Rocky Mountain National Park, which is open but operating with a limited staff since Dec. 22, 2018, due to the federal government shutdown. Because of the shutdown, the roads aren’t being plowed so much of the park is not open to vehicle traffic. Fat bikes, however, work just fine. Zehr, who is also the manager at the Estes Park Mountain Shop, and some friends rode their fat bikes to the Bear Lake Trailhead and did a backcountry ski trip in the park on Jan. 6, 2019. (Provided by Zach Zehr)
Vail is one of the world’s most popular ski resort towns, but in the warmer months of the year, it draws visitors who come to mountain bike, hike, golf and ride whitewater rapids. Throughout the season, there are an abundance of music and dance festivals, including the Bravo! Vail Valley Music Festival which features orchestras like the New York Philharmonic that performs at the outdoor Gerald R. Ford Amphitheater, as well as the Vail International Dance Festival and the Vail Jazz Festival. Just a few of the other highlights include botanical tours through the Betty Ford Alpine Gardens, rock climbing excursions in Vail Valley and the wealth of shops, bars and eateries in the village of Vail itself.
A gorgeous mountain town that is not as well-known as its counterparts, Salida offers a variety of historic attractions to fill up a weekend itinerary. Take the Monarch Scenic Tram to soak in stunning Rocky Mountain views, go for a dip in the Salida Hot Springs or explore the area’s local history and culture at the nearby Salida Museum. When the weather warms up, grab a kayak or tube and head to the Arkansas River, and active travelers can utilize one of the many scenic mountain bike trails to explore the region further. A certified Colorado Creative District, visitors can also browse the area’s abundance of impressive art studios and galleries.
Cripple Creek / Victor – If you’re a history buff, a wild west fanatic, or a fan of quintessential Colorado scenery, you’ll love the towns of Cripple Creek and Victor. Both towns offer a number of easy and fun hikes (we love the Vindicator Valley Trail) that showcase the area’s rich mining history. Visit the Mollie Kathleen Gold Mine for a unique trip through 1,000 feet of rock and into a real mine. There are also a number of enchanting local hotels that warrant a night’s stay (or two!) on your authentic Colorado vacation.
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]
Need to take a break, warm up or find that perfect place to have a picnic? All of Loveland’s on-mountain cabins are equipped with propane BBQ’s. What’s the catch? Nothing, these cabins are free to use. Loveland’s on-mountain cabins are just another reason why skiers and snowboarders love Loveland. Make sure you stop by and check one out on your next visit to Loveland.
And when it’s time to book your weekend trip to Colorado, consider a vacation rental as your accommodation. Whether you prefer an urban loft, slopeside home, or mountain chalet, TripAdvisor offers a wide variety of different rentals across the state. You’ll be treated to homey amenities such as a full kitchen, laundry, and even perhaps a fireplace and Jacuzzi for those chilly Colorado nights!
In summer you can swap skies for hiking boots and discover endless trails through the beautiful landscape, or try cycling, fishing, rafting, kayaking, rock climbing and back-country camping. The Telluride Arts District is packed with arts and culture attractions and the town has also been named one of the top 20 foodie destinations in the country. Things to Do in Telluride
The Experience: This gorgeous crystal-blue mountain scene captures Loch Lake, which is in the Rocky Mountain National Park. Take a day trip here to see the national wonder and spend the rest of your vacation enjoying the charming college town of Boulder. Stay at the St. Julien and enjoy a spa treatment or book a room at the hip, adult-only Basecamp Hotel for a quintessential Colorado vibe.
Enter to WIN two premium class tickets to London Plus a 3-Night Stay!Deadly ‘zombie’ deer disease in Colorado, other states could eventually spread to humansSnow, significantly cooler temperatures arrive SundayWWII veteran celebrates 100th birthday with friends, family and fellow service membersDenver first responders are incorporating yoga into training
A home base for travelers visiting the Rocky Mountain National Park, Estes Park is less than a 2-hour drive from Denver. The park offers 355 miles of hiking trails paired with stunning vistas and landscapes, from snow-capped mountains to picturesque lakes and valleys, where those who crave adventure will find a myriad of outdoor adventures. Estes Park itself is a great area to explore, as visitors can meander the Riverwalk in Downtown Estes Park or hop on the Estes Park Aerial Tramway to the top of a small peak. Estes Park boasts a variety of shopping and dining experiences, while movie enthusiasts will want to stop by the world famous Stanley Hotel that was the inspiration behind Stephen King’s “The Shining.”
All this and more just moments from your dream mountain town home.  Or, venture further into Rocky Mountain National Park and nearby high mountain ranges to find scenic drives and trailheads — with wild flower fields, lush basins and snowcapped massifs, world famous hiking, backpacking and mountaineering, pristine trails up bubbling brooks and cascading waterfalls, through chaos canyons to stair-stepping alpine lakes, frozen tarns, imposing glaciers, tantalizing 13’ners and 14,000′ sawtooth ridges — an adventure-filled vacation you’ll always remember.  
Located in Lions Gate Drive in Winter Park, Winter Park Chateau is a boutique Victorian-style bed and breakfast ideally placed, as it allows visitors to easily explore the surrounding area. The Chateau offers well appointed, comfortable accommodation in the form of eight guest rooms, which feature king, queen, or double beds, designer décor, private bathrooms, and amenities such as flat-screen televisions and wireless Internet. Some of the rooms have fireplaces, jetted spa baths and private balconies with stunning views.
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. 

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.


Louisville is conveniently situated between Denver and Boulder, offering visitors an attractive weekend getaway destination with a distinctive American small-town feel. You can stroll through the historic Old Town, where several historic buildings now house modern shops, restaurants and businesses. Downtown is also home to the Louisville Art District, which is packed with galleries, studios and hosts a monthly First Friday Art Walk. Live music and theater is popular and you can catch a concert at the Center Stage Theatre Company or the Coal Creek Community Theater. Outdoor activities include walking, hiking, biking and ice skating, while nearby Boulder offers many additional cultural and outdoor attractions.


The rooms here are Euro-sexy, with dark, thick, exposed beams and spacious, mirror-lined bathrooms. The spa is one of the best in Vail Valley, with a beautiful indoor-outdoor pool, fresh spa water and tea easily accessible and multiple hot tubs, both inside and out. Sit in the bubbling, warm water with a cup of tea while snowflakes drift around you. 
The Olives Aspen restaurant, run by Chef Todd English, serves Mediterranean-inspired cuisine with a local flare. The Lobby Lounge features beautiful views, and offers a light menu with cocktails, aperitifs, wines, and beers. Doubles from $725 per night. The hotel is located 10 minutes from the Airport. You can contact the hotel to arrange transportation. Doubles from $725 per night. The hotel is located 10 minutes from the Airport.
By day, this forested hot spring just north of Steamboat Springs teems with families splashing in the all-natural pools. After dark, it becomes exclusively adults-only — and clothing-optional; don’t be surprised if you spy a cowboy or two taking a dip au naturel. Secluded hillside cabins and train cabooses are within sprinting distance from the pools, for those cooler Colorado nights.
If you and your partner are looking to get off the grid after months of wedding planning, then head to these cabins located on the banks of Bear Creek. Walk or relax near the creek and share the view with wildlife who live on the land. Have complimentary breakfast brought to you as you lounge in a comfy chair along the water, or spend some time in the hot tub right on the creek to unwind. For dinner, enjoy pizza from the brick oven on the patio and socialize with other couples.
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.
The Experience: Denver is the perfect urban adventure for anyone who likes midsize cities. It's easy to navigate and manage and doesn't feel at all claustrophobic, but offers endless cultural excursions, gourmet dining experiences, and a fun nightlife you'd expect from large cities. Make sure you visit the Denver Art Museum, check out the breweries in the RiNo neighborhood, and stay at the Crawford Hotel, which is in the old Denver Union Station. For a boutique hotel, stay at The Maven Hotel.
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