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.

At 265,000 acres, Rocky Mountain National Park isn't the country's largest national park, nor is it the most-frequented with about 4 million annual visitors (compared to Great Smoky Mountains National Park's more than 11 million visitors). But there is something definitively magical about RMNP, which rises 12,183 feet into the Colorado sky. The main attraction is hiking its 350-some miles of trails that wind through pine and spruce forests, glittering alpine lakes, swaths of wildflowers and if you're lucky, some elk or bighorn sheep. And maybe it's the thinner atmosphere that goes to visitors' heads, but even the most jaded report feelings of awe and wonder after a day or two of breathing in that refreshing mountain air. 


Now part of the Estes Park Condos family, Black Canyon Inn offers privately owned condos and a stunning log cabin — all located off of the beaten path but still within Estes Park. Max occupancy options range from two guests in the secluded Columbine Cabin all the way up to ten guests in other lodges. See all of them here and enjoy jaw-dropping photos and views before you arrive!
^ Montana State University states in their profile of Rocky Mountain National Park that there has been an increase of 2.5 °F (1.4 °C) in the average park temperature over "the past century" (charts show the period from about 1895-2010).[48] The National Park Service site states that the increase has been 3.4 °F (1.9 °C) over "the last century" (chart shows the period from about 1905-2010).[52]
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.
Estes Park is always a wonderful escape for anyone looking to get out of Denver for a day or two. There is a lot to do and see here, with plenty of wonderful restaurants, entertainment and shopping. Plus, off-season the rates are very affordable, and you’ll find the town less crowded and easier to explore. Stay at the Fall River Cabins, just two miles east of Rocky Mountain National Park. You’ll find the cozy, country-style wood cabins to be very romantic, with spa hot tubs and fireplaces in each unit. Everything has that rustic, woodsy feel, which adds to the mountain escape that you will enjoy all weekend long.
Just a few miles from the town of Estes Park, Rocky Mountain National Park is one of the most popular national parks in the United States. The soaring mountain peaks, alpine lakes and meadows, forests, and abundant wildlife showcase nature at its best. The park has more than 100 peaks over 10,000 feet, including Longs Peak, the highest in the park, at 14,259 feet.

The A.R. Mitchell Museum of Western Art and the many galleries in the creative district are bound to thrill art lovers, while the Southern Colorado Repertory Theater provides live entertainment. Outdoor enthusiasts can go camping, fishing, hiking and boating in the Trinidad Lake State Park, seek dinosaur tracks in the Comanche National Grassland, or go trout fishing on the Purgatoire River.


For an amazing view in the summertime, take the cable tramway up to the top of Prospect Mountain. Pack a picnic and prepare to capture some great photos. Although it can be a bit chilly in the lakes during the cooler months, that doesn't mean you shouldn't bring your swimsuits here---the Estes Park Aquatic Center has a heated pool so you can comfortably swim year-round. 


Golden is less than an hour drive from Denver and you’ll love escaping to its stunning views and small-town feel. There are lots of amazing restaurants to check out, some fantastic theater to enjoy and a long street filled with tons of quaint shops, perfect for browsing. Book your room at the Dove Inn Bed and Breakfast and you’ll also have a romantic getaway retreat that is very affordable. You can even add in a special romance package which includes a dozen roses, a box of premium chocolates and sparkling cider for an additional $50. If you want to splurge a little, opt for the Serenity Suite, with an over-sized jet tub for two, cathedral ceilings and, of course, a delicious home-cooked breakfast.
Cheyenne Mountain Resort offers a honeymoon escape that includes breathtaking mountain views, outstanding dining and especially luxurious rooms. It has a good menu of special romance packages to choose from too, including having Champagne, locally-sourced gourmet cheeses and fresh fruit delivered to your room. You can look forward to indulging in a romantic dinner buffet for two, or even go all out by booking the boudoir portrait session, which includes complimentary Champagne. Activities abound too, with a 35-acre lake for water sports, five indoor and outdoor pools, a spa, 18-hole golf course, tennis courts and a fitness center.
Nicknamed the “Mile-High City” because it sits exactly a mile high in altitude above sea level, Denver is Colorado’s capital and largest city. Located just east of the Rocky Mountains, Denver is a popular winter sport destination that celebrates its mining and cowboy history. The city also boasts a lively arts and culture scene with many distinguished museums, such as the Denver Art Museum, and the Denver Performing Arts Complex, one of the nation’s largest performing art centers.

The St. Regis Resort offers castle-like grandeur and a staff that will treat you like royalty. It also has a menu of romantic vacation packages that are perfect for honeymooners, and all can be customized just for you and your new spouse. You can choose things like in-room dining, spa gift certificates for its decadent Remede Spa, as well as having flowers, chocolate-covered strawberries and sparkling wine delivered and waiting in your room upon your arrival. The property sits at the base of Aspen Mountain, just steps away to many of Aspen’s top restaurants and shops. The resort has its own eatery onsite too, which serves breakfast, lunch and dinner as well as hosting live music at night.
With majestic mountains, tundra wildflowers, abundant wildlife, Trail Ridge Road (the highest paved road in the US), and over 350 miles of trails, Rocky Mountain National Park is spectacular!  From flat easy hikes around a mountain lake to challenging multiday backpack trips and climbs, Rocky Mountain National Park offers trails for hikers of every level - let us help you plan your adventure!  Find the best ways to take in the majesty and serenity of the park.  It's YOUR Rocky - explore it! 

More than 3,000 elk, 800 bighorn sheep and herds of mule deer and moose live in the park. For the best photography lighting and opportunities to spot massive bugling elk, head to Moraine Park just after sunrise. View bighorn sheep at Sheep Lakes May through mid-August and catch a glimpse of RMNP’s ever-elusive moose population along the Colorado River in the Kawuneeche Valley on the park's west side.
One of the best properties situated in Manitou Springs is Cliff House at Pikes Peak, which is perfect for your romantic getaway. Why do we call it perfect? Other than the superb facilities, such as a fitness center and great restaurants, the hotel’s location near the beautiful downtown Manitou Springs is ideal for fun. In around a 5 minute walk, you and your partner can explore the city all day together.
In the summer, the Durango & Silverton Narrow Gage Railway is one of the town's main tourist attractions. This historic train runs day trips up the valley from Durango to the old mining town of Silverton, high in the mountains. Durango is also the terminus of the Colorado Trail, a 500-mile-long backcountry trail that runs from Denver to Durango. You can do a day hike or mountain bike along the trail, going out and back the same way. The trail follows the scenic Junction Creek and then climbs up to Gudy's Rest, where many people enjoy lunch and then turn around. In the town of Durango and in the surrounding mountains are numerous hiking and mountain biking trails.
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.
From luxury condos in major cities, to furnished beach rentals, cozy ski cabins and more, Tripping.com offers the widest variety of unique accommodations for your next trip. Whether you’re seeking a lakefront cabin for a quick getaway, a modern apartment in New York City, or a beachfront property with sunset views in Hawaii, Tripping.com can help you find and book it all.

Nestled just one mile from the south entrance of Rocky Mountain National Park and two miles from downtown Estes Park, Rockmount Cottages is a 20 cabin resort covering 15 acres of wilderness. On the grounds, you’ll have access to a half mile of the Big Thompson River available for fishing and riverside picnics. To fit the lodge lifestyle, each cabin is constructed of knotty pine and most include cozy, stone fireplaces as well as furnished kitchens, a 40-inch flatscreen and DirecTV, wireless internet, and outdoor charcoal grills and picnic areas.

Trail Ridge Road will not open until at least Memorial Weekend but there are many amazing areas open year round in the park. Heavenly Valley is the one place in the park where sledding is allowed but you must bring your own tube or sled. Cross-country skiing is incredible with so many trails to choose from and snow shoeing is a great way to explore new areas. Stop at one of the visitor centers as you enter the park to find out what areas are open and it is always best to call ahead for weather and road conditions. Check forecasts before you go at weather.gov and insert "Trail Ridge, CO" for the location. For information about Rocky Mountain National Park call 970-586-1206 daily 8 a.m. to 4:30 p.m. (Mountain Time).


The Experience: Everywhere you look in Aspen, the views will take your breath away, especially if you stay at the historic Hotel Jerome. It's the ultimate mountain resort town every time of year, with world-class shopping, delicious food spots, and, as we mentioned, gorgeous scenery. Ski in Snowmass or Highland Bowl. In the summer, try to plan your trip to attend the wine and food festival or the annual jazz festival. Catch a show at Belly Up, party on the mountain at Cloud Nine, eat at Matsuhisa, or cross-country ski to dinner at the remote Pine Creek Lodge.

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.
Beaver Mountain Loop, also used by horseback riders, passes through forests and meadows, crosses Beaver Brook and several aspen-filled drainages, and has a great view of Longs Peak.[42] Deer Mountain Trail gives a 360 degree view of eastern part of the park. The summit plateau of Deer Mountain offers expansive views of the Continental Divide. During the winter, the lower trail generally has little snow, though packed and drifted snow are to be expected on the switchbacks. Snow cover on the summit may be three to five feet deep, requiring the use of snowshoes or skis.[42]
“If my internship changes and I’m not able to do what I expected to do, that’s not a huge deal in comparison to others’ problems. My concern is for the more established park rangers,” said Burkey, who hails from Ohio. “I don’t have a family and kids to provide for. My future coworkers, my supervisor, they do have a family, bills and a mortgage. And they’re the ones not getting paid.”
A comfortable reading and DVD library serves as the perfect place to relax with a book and a glass of wine, and there is free high-speed Internet throughout the property. The Wild Horse Inn is surrounded by incredible natural landscapes that offer an array of activities to partake in, from hiking, mountain biking, and climbing to boating, rafting and fishing, and various snow sports in the winter. The inn is located 1 hour and 30 minutes from Denver.
Located at the foot of Pikes Peak, Colorado Springs draws visitors who come to see the view from the mountain that inspired the writing of the song “America, the Beautiful.” Some hike to the mountain’s 14,115-foot (4,302 meter) summit while others drive or enjoy a ride on the Pikes Peak Cog Railway. With its sculptural sandstone formations and balancing rocks, the Garden of the Gods is another popular natural attraction. This culturally rich city has many museums worth exploring too, including the Fine Arts Center, Pioneer Museum and the Rock Ledge Historic Site, an open-air museum where costumed docents depict life in Colorado Springs throughout its long history.
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]
Crested Butte is an amazing ski destination and the wildflower capital of Colorado, attracting outdoor enthusiasts all year round. Before you hit the slopes or the hiking trails, you can learn about the mining history of the town on a Crested Butte Historic District Walking Tour and meet some of the town’s talented artists on a tour of the Crested Butte Creative District.

An alpine village peppered with an array of modern resorts, Beaver Creek is the perfect weekend getaway destination. A laid-back ambiance of unhurried travelers, here visitors can get away from it all with the area’s world-class skiing and resort amenities. With gorgeous Rocky Mountain views, Beaver Creek is located in the Vail Valley and offers plenty of activities to fill a weekend itinerary. Many people come to try their hand at the 1,815 acres of skiable slopes, catering to both novice and experts alike. The area has plenty of other things to do, however, as visitors can take in a show at the Vilar Performing Arts Center, or indulge in anything from golf courses to pampering spas, shops and restaurants, with the city even home to a large outdoor ice rink in its city center.
Black Canyon of the Gunnison is a fabulous, rugged looking canyon, and it's remote enough that it has the feeling of being undiscovered. Steep cliff walls rise up from the Gunnison River, creating a narrow and dramatic canyon. The depth of the canyon is around 2,000 feet, with Gunnison Point and Chasm View at just over 1,800 feet and Warner Point at 2,722 feet.
The city of Vail was built to accommodate the Vail Ski Resort, which is the largest single-mountain ski resort in the country. With 193 marked skiing trails, Vail is one of the nation’s most popular ski resorts as well. The Tyrolean-style village is nearly as well visited during the summer. Nearby streams and lakes stocked with fish make Vail an angler’s dream, and opportunities for river rafting abound. Horseback riding, mountain biking, golf and hiking are other popular warm-weather activities.
With its reputation for attracting celebrities and well-heeled travelers, Aspen is one of the world’s most famous ski resorts and one of the best places to visit in Colorado. There’s good reason for the all the hype. Four resorts offer great skiing for every level of skier, from the gentle slopes of Buttermilk Mountain to the ungroomed terrain on Aspen Mountain. During warm weather, visitors can fish for trout from the Roaring Fork River or take shuttles to the nearby 14,000-foot (4,300 meter) peaks of the Maroon Bells to enjoy leisurely hikes around Colorado’s most photographed mountains.
Reminiscent of the grand mountain lodges built at the turn of the 20th century, the Wild Horse Inn is handcrafted from 400-year old logs and moss covered rock, and it boasts grandiose windows that look out over the valley. This beautifully rustic inn is the perfect winter escape with luxurious log cabin rooms, crackling fireplaces, en-suite bathrooms with showers and jetted tubs, and private balconies or decks. Guests are treated to a full gourmet breakfast each morning and can enjoy complimentary tea, coffee, hot chocolate, and cookies all day.

Located 17 miles from the Winter Park ski resort and 16 miles from Vail, Frisco is the perfect small-town getaway. You can relive life as a miner in the Old West at Frisco’s historic park and museum or take a mountain bike ride that takes you over 55 miles of paved pathways. Strap on snowshoes or cross-country skis for a turn around the Frisco Nordic Center. During the summer, paddle or motor out to the Sentinel Island from the Frisco Bay Marina. Rent a cozy condo at Mountainside, or consider renting a lovely house on the Blue River. Warm up the evening with delicious farm-to-table fusion fare Italian-style at Bagalis Frisco.


Dial (970) 586-1222 for a recorded message on the status of Trail Ridge Road. You may not know that our mountain makes its own weather, so it is not uncommon to have snow in July or August at the top of Trail Ridge Road. Such weather will only last for a few hours to a day, but if you are planning to cross over Trail Ridge Road, weather may hamper your travel. You also may find the road closed due to weather in early June and September/October.
Now part of the Estes Park Condos family, Black Canyon Inn offers privately owned condos and a stunning log cabin — all located off of the beaten path but still within Estes Park. Max occupancy options range from two guests in the secluded Columbine Cabin all the way up to ten guests in other lodges. See all of them here and enjoy jaw-dropping photos and views before you arrive!
Non-flowering lichens cling to rocks and soil. Their enclosed algal cells can photosynthesize at any temperature above 32 degrees Fahrenheit (0 °C), and the outer fungal layers can absorb more than their own weight in water. Adaptations for survival amidst drying winds and cold temperatures may make tundra vegetation seem very hardy, but in some respects it remains very fragile. Footsteps can destroy tundra plants and it may take hundreds of years to recover.[73] Mammals that live on the alpine tundra, or visit during the summer season, include bighorn sheep, elk, badgers, pikas, yellow-bellied marmots, and snowshoe hares. Birds include prairie falcons, white-tailed ptarmigans, and common ravens. Flowering plants include mertensia, sky pilot, alpine sunflowers, alpine dwarf columbine, and alpine forget-me-not. Grasses include kobresia, spike trisetum, spreading wheatgrass, and tufted hairgrass.[73]
Grand Lake is arguably the biggest attraction in the town of Grand Lake, offering boating, sailing, fishing, swimming, kayaking and yachting – it even hosts a Regatta Week in early August. This is also where you’ll find the biggest Fourth of July fireworks display in all of Colorado, as well as a wealth of popular tourist spots like candy shops, old time photo galleries and saloons, an array of gift shops and even mini-golf courses. Plus, as it sits near the western entrance of Rocky Mountain National Park, you’ll be steps away from one of the country’s most spectacular wildlife-filled parks too.
Above tree line, at approximately 11,000 ft (3,400 m), trees disappear and the vast alpine tundra takes over.[69] Over one third of the park resides above the tree line, an area which limits plant growth due to the cold climate and strong winds. The few plants that can survive under such extreme conditions are mostly perennials. Many alpine plants are dwarfed at high elevations, though their occasional blossoms may be full-sized.[73]
During the winter most of Trail Ridge Road is closed due to heavy snow, limiting motorized access to the edges of the park.[68] Winter activities include snowshoeing and cross-country skiing which are possible from either the Estes Park or Grand Lake entrances. On the east side near Estes Park, skiing and snowshoeing trails are available off Bear Lake Road, such as the Bear Lake, Bierstadt Lake, and Sprague Lake trails and at Hidden Valley. Slopes for sledding are also available at Hidden Valley. The west side of the park near Grand Lake also has viable snowshoeing trails.[68][88] Backcountry skiing and snowboarding can be enjoyed after climbing up one of the higher slopes, especially late in the snow season after avalanche danger has subsided[89], and technical climbing remains also a possibility, although typically differing in style from the summer months[90].
The Experience: Like Crested Butte, Telluride is a place that anyone will fall in love with no matter the season. Plus, it's a bit more down-to-earth than Aspen and Vail for anyone looking for a Colorado ski town that has a more casual energy. Surrounded by the San Juan Mountains, the charming town is lined with authentic saloon-like bars, boutique gourmet eateries, and old-school chop houses. If you visit during the winter, hit the slopes or go helicopter skiing and dog sledding. And in the summer, you can do anything from riding around the backcountry in an old Jeep to river rafting, fly-fishing, and hiking to the many striking mountain springs, including Blue Lakes, Hope Lake, and Navajo Lake. Book a room at the Dunton Town House for an intimate stay.
For an amazing view in the summertime, take the cable tramway up to the top of Prospect Mountain. Pack a picnic and prepare to capture some great photos. Although it can be a bit chilly in the lakes during the cooler months, that doesn't mean you shouldn't bring your swimsuits here---the Estes Park Aquatic Center has a heated pool so you can comfortably swim year-round. 

Surrounded by over 100,000 acres of the Pike National Forest, the Ranch at Emerald Valley is an unmatched, all-inclusive retreat that combines the rustic charm of a wilderness enclave with The Broadmoor’s incomparable luxury and service. Honeymooners can indulge in one of 10 beautifully appointed cabins, featuring gas fireplaces, rich furnishings, and modern amenities. Couples can spend their days fly fishing in pristine mountain lakes, hiking and biking along scenic trails or exploring the mountains on horseback. Afterward, unwind by soaking in an outdoor hot tub and sipping fine wine on a panoramic terrace while enjoying the beauty of a Rocky Mountain sunset. All meals and ranch activities are included as part of the stay, making it an ideal setting for intimate getaways where every detail is thoughtfully handled.


The main things to do here are to simply gaze out over the canyon and appreciate the environment or wander along the walking paths and short hiking trails on the rim. These are generally flat and easy trails. If you're adventurous, you can hike into the canyon, but trails are not maintained or marked, conditions are difficult, and you are basically on your own and responsible for the costs of rescue, should the need arise. Three campgrounds are located in the park; the North and South Rim campgrounds are open to tents and RVs but the East Portal is only open to tents.
We love Colorado Springs staples like the Garden of the Gods Park, The Pike’s Peak Cog Railway, U.S. Olympic Training Center and Manitou Cliff Dwellings but the big news this summer is Cheyenne Mountain Zoo’s new $13.5 million exhibit Encounter Africa. Highlights include an amphitheater that will allow guests to see elephant training, enrichment and husbandry, a new exhibit for the African lion pride and a “Skybridge” that will take guests from the exhibit to the barn, enabling them to see the elephants from above. www.cmzoo.org. For a thrill, check out the Cave of the Winds’ Wind Walker Challenge Ropes Course that is located on the rim of a 600-foot drop into Williams Canyon.  Colorado Wolf Adventures have teamed up to host “Up Close with the Wolves” this summer. The new 4,400 square-foot Florissant Fossil Beds National Monument’s Visitor Center offers more fossils on display and interactive exhibits.  If a train ride is on your bucket list, the South side of the Royal Gorge Bridge and Park takes on a new look with the addition of Pinon Ridge Play-Land, a 2,000-square foot playground built specifically to blend into the natural surroundings.
The nearest airport is Denver International Airport[91] and the closest train station is the Denver Union Station. Estes Park may be reached by rental car, shuttle or RTD bus.[91][98] During peak tourist season, there is free shuttle service within the park and the town of Estes Park provides shuttle service to Estes Park Visitor Center, surrounding campgrounds, and the Rocky Mountain National Park's shuttles.[91]
Fort Collins is the perfect base camp for your trip, located just 35 miles from the peaks of Rocky Mountain National Park that soar to more than 13,000 feet and form the Continental Divide. The town of Estes Park sits at the eastern edge of the park. Rocky Mountain National Park covers 410 square miles and includes Longs Peak (14,255 feet high), 18 named peaks above 13,000 feet, 150 named lakes, and the highest continuously paved highway in the U.S. — Trail Ridge Road. The road is usually open from Memorial Day until early October. However, the park is open year-round and lower elevation roads are open during the winter.
Not everyone wants a honeymoon on the beach or has the time to make it out to a tropical location. Colorado is an amazing destination for a honeymoon. Imagine dipping into a steaming outdoor hot tub right outside your honeymoon cabin, or spending time cuddling next to a cozy fireplace inside.  Here are some inviting and romantic cabins all around Colorado that are perfect for a honeymoon.
The Leland House and Rochester Hotel are family-owned historic hotels with an authentic Western theme. The 14 rooms at the Rochester Hotel are themed after Westerns that were filmed in the Durango area. Each of the 12 accommodations in the Leland House is named after a historic Durangoan and is decorated with that person’s memorabilia, biographies and photos. All rooms have Wi-Fi, cable, Aveda products, complimentary gourmet breakfast and free Cruiser bike rentals. Grab a drink at the Rochester Bar which serves the hotel’s signature Rochester wine.
Bear Lake is a high-elevation lake in a spruce and fir forest at the base of Hallett Peak and Flattop Mountain.[44] Bierstadt Lake sits atop a lateral moraine named Bierstadt Moraine, and drains into Mill Creek. There are several trails that lead to Bierstadt Lake through groves of aspens and lodgepole pines.[45] North of Bierstadt Moraine is Hollowell Park, a large and marshy meadow along Mill Creek. The Hollowell Park trail runs along Steep Mountain's south side. Ranches, lumber and sawmill enterprises operated in Hollowell Park into the early 1900s.[45]
Whether an avid mountain explorer, nature enthusiast, or distant traveler in search of best days ever, This Mountain Life offers the ideal setup for your next Colorado USA mountain town encounter. Through our elite and uncommon classic guest traveler cabins — Redemption Cabin, Exploration Cabin and Reflection Cabin — you’ll find peace, romance, exciting adventures and exhilarating moments. Amble our riverbanks, ramble our trails and scramble our peaks to discover heavenly context for your next beautiful chapter and amazing rejuvenation. 
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]
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