Once famous as a gold-rush outpost, the modern city of Golden has diversified by leaps and bounds and now offers visitors a great mix of outdoor, cultural and historic attractions. Go back in time to the gold mining era on a tour of Historic Downtown, where you will find several museums including the Golden History Center and the Colorado School of Mines Geology Museum.
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 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.
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.
Although Aspen is best known as a winter sports destination, this lovely little town in the heart of the White River National Forest is a brilliant year-round destination for active adventurers, festival lovers and arts aficionados. Besides downhill skiing, you can try cross-country skiing, snowshoeing, snowmobiling, ice skating and dog sledding, before rounding off your day with Après-Ski cocktails, local craft beers or a delicious meal.
Located in in southwestern Colorado, Mesa Verde is home to the famous cliff dwellings of the ancient Anasazi people. It is one of the most significant archeological preserve of Native American culture in the US. In the 12th century, the Anasazi start building houses in shallow caves and under rock overhangs along the canyon walls. The most famous of these is Cliff Palace. The Ancient Puebloans constructed it from sandstone bricks, and mortar made from ash, clay and water. It encompassed 150 rooms and 76 open areas. Climatic change and increased population placed the communities under stress and by the late 1270s, the Ancestral Puebloan population began migrating to what is now New Mexico and Arizona.
Regardless of whether or not you have seen cliff dwellings before, you will be blown away by Mesa Verde and the amount of access to the actual ruins that the park allows visitors. The park's centerpiece, Cliff Palace is one of the most impressive dwellings in the entire Southwest, with a dramatic setting and incredibly preserved ruins. Ranger-led tours, which run regularly during the summer high season, allow you to climb ladders right up into the heart of the dwelling. If you aren't up for that level of activity, you can get a full view of the site from a nearby overlook.
Known for its prominence in the movie ‘The Shining,’ the historic Stanley Hotel is the centerpiece of Estes Park. But for a more secluded, romantic stay, choose an intimate place like the Dunraven Inn, where a friendly and casual ambiance puts a soul at rest. If you’re looking for a place in the woods with fabulous mountain views and a warmly bubbling jetted tub that’s just a short walk to town, choose a Prospect cabin. Just outside the door of your vacation rental and along the scenic drives, you’ll catch wildlife frolicking in the fresh air.

Our lodging is a 300 yd. walk to RMNP. The Big Thompson River flows thru our backyard.  Enjoy hiking, wildlife, fishing, birding & photography.  Treat yourself to a soak in our riverside hot tub. Some cabins w/ kitchens & fireplaces. Catering to singles, couples & small families.  Exceptionally clean & affordable w/ a relaxing atmosphere, personality & charm.   Swiftcurrent Lodge on the River Details


Rocky Mountain National Park is home to herds of elk and bighorn sheep, but it also has a population of mountain lions and black bears. Although attacks are very rare, the National Park Service recommends visitors hike in groups since these animals are less likely to grow aggressive when faced with multiple people. Campers should also stow all food in food lockers if available or in airtight, bear-resistant containers. Ticks also pose a risk, and since these can be carriers for disease, it's important to do nightly tick checks after a day on the trails. 
Plan a romantic getaway or a family vacation to one of the top Colorado destinations including Boulder, Aspen, Denver, Colorado Springs, Fort Collins, Steamboat Springs, Estes Park, Telluride, Durango and Crested Butte. Whether you are looking to get away to the mountains or spend your weekend enjoying attractions in a fun city, there are many family-friendly vacation ideas and romantic getaways in Colorado.
A small mining camp not so long ago, Boulder is a modern, sophisticated town at the base of the Flatirons, popular among extreme sports folks and lovers of magnificent nature of all ages. Stroll through the charming downtown with the popular Pearl Street Mall. Discover Boulder’s past at the Boulder History Museum located in the beautiful historic Harbeck-Bergheim House. Boulder Museum of Contemporary Art not only has a range of permanent and temporary exhibits, but also popular educational programs.
^ Jump up to: a b "Landscape Climate Change Vulnerability Project; Using NASA Resources to Inform Climate and Land Use Adaptation; Ecological Forecasting, Vulnerability Assessment, and Evaluation of Management Options Across Two US DOI Landscape Conservation Cooperatives" (PDF). montana.edu. Montana State University. August 2011. pp. 2, 5. Retrieved February 5, 2017.
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.
Maroon Bells-Snowmass Wilderness showcases some of Colorado's most spectacular Rocky Mountain scenery and offers a chance to get out of your car and into nature. This area has six mountains over 14,000 feet, along with forests, alpine lakes, meadows, and 175 miles of trails to help you explore the terrain. Alternatively, you can enjoy the views on some of the scenic drives.
If you are looking for romantic mountain getaways in Colorado, Taharaa Mountain Lodge in Estes Park, Colorado is a beautiful country lodge just minutes from the Rocky Mountain National Park. Set on five acres, the lodge offers vacationers nine rooms and nine suites with stunning views of the surrounding mountains. Guest room decor incorporates natural elements from the region. Each room and suite has floor-to-ceiling windows, fireplace and a panoramic outdoor deck, perfect for savoring the view. Ask for one of the suites with a Jacuzzi tub if you are planning a romantic getaway or a honeymoon in Colorado. The lodge has a sauna and a cozy massage room where guests can enjoy a variety of treatments, such as aromatherapy, hot stone massage and facials. Rooms start at $159 per night. Delicious morning breakfast and evening happy hour are included in the cost of your stay.
True love deserves nothing but the best. Have a romantic getaway at the Broadmoor, where you will experience world-class service and be pampered like royalty! Located not far from the Cheyenne Mountain Zoo, the hotel provides only the best for its guests. To start the day, you can have a swim in one of its three swimming pools. Then, have breakfast in one of the 18 dining sites in the hotel. There are plenty of activities for you to spend the rest of the day, such as golfing, getting a spa treatment, and playing tennis.
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.
The Elk are bugling and Fall is coming.  What a perfect time to come to Estes Park to see the Elk in their natural surroundings of Rocky Mtn National Park.  Within the boundaries of Rocky Mountain National Park, more than 100 peaks rise above 11,000 feet in altitude, including Longs Peak at 14,259 feet. These amazing mountains cradle the Estes Valley, providing residents and guests with incredible beauty and inspiration.
An excellent vacation destination for visitors who are ready to hit the slopes, winter enthusiasts flock to Telluride every year for its 1,700 skiable acres that cater to both experts and novices alike. Visitors flock to Town Park on the southeast edge of town for its abundance of activities available, such as swimming pools, tennis courts, fishing ponds and campgrounds that are popular for the city’s annual festivals and events. Bear Creek Falls and Bridal Veil Falls offer a variety of scenic hiking trails, while the Telluride Historical Museum and Historic Sheridan Opera House are two cultural attractions that shouldn’t be overlooked.
Home to Colorado’s Vail Ski Resort, Vail is a trendy vacation town located at the base of Vail Mountain and attracts people for its skiing and snowboarding scene, as well as its dining, shopping and arts. It is also a popular summertime destination, offering golfing and hiking opportunities, along with cultural festivals. People also come her to go fly fishing at Gore Creek, which runs through the center of town.
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!
Colorado Springs offers multiple locally-owned Bed and Breakfasts that are close to attractions, shopping and restaurants. These B&B’s are the picture-perfect place for you and your partner to unwind.  Many of the Bed & Breakfasts also feature a romantic weekend room which will include a private bathroom with a jetted tub and delicious hot breakfast.
Dinosaur National Monument, in northwest Colorado, combines dramatic scenery with natural and cultural history to create one of Colorado's most interesting sites. Dinosaur remains embedded in exposed rock walls reveal evidence of the giants that once roamed these areas. Petroglyphs offer insight into the cultures and people that lived here long ago, and surrounding it all are cliff walls and the Green and Yampa Rivers snaking through the otherwise dry landscape.
The weather in RMNP is highly variable. To avoid being caught off-guard, pay attention to the weather report (especially afternoon thunderstorms in the summer or heavy snow during the winter). The NPS also warns that wintertime visitors planning on cross-country skiing should be aware of the risks of avalanches, and should consider completing an avalanche training from places like the Colorado Avalanche Information Center before hitting the trails. For more safety tips, consult the NPS website .
A small mining camp not so long ago, Boulder is a modern, sophisticated town at the base of the Flatirons, popular among extreme sports folks and lovers of magnificent nature of all ages. Stroll through the charming downtown with the popular Pearl Street Mall. Discover Boulder’s past at the Boulder History Museum located in the beautiful historic Harbeck-Bergheim House. Boulder Museum of Contemporary Art not only has a range of permanent and temporary exhibits, but also popular educational programs.
Your first stop should be the Quarry Visitors Center from where you can access the main attraction at the park, the Quarry Exhibit Hall, built over the Carnegie Dinosaur Quarry. A huge wall of windows allows in natural light, making it feel more like an excavation site than a museum. Fossils are in various states, from still encased in the stone wall to fully assembled skeletons.
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)
Split down the middle by the vast Rocky Mountains and jam-packed with national parks and wilderness areas, Colorado is an ideal travel destination for outdoor pursuits in every season. From skiing and whitewater rafting to hiking, biking and camping, outdoor activities are a way of life in the Centennial State. The state’s fun-loving culture attracts visitors looking for a laidback vacation too. After all, Colorado produces more beer than any other state and is one of only two states in the Union that has legalized marijuana for recreational use. Rich in historical and cultural attractions as well as in natural beauty, the best places to visit in Colorado have something special to offer every visitor.
There’s plenty to do south of Denver on your Colorado vacation. Whether you’re into mountain biking, hiking, history, sight-seeing, or soaking in a hot springs pool, you can find a destination in Southern Colorado (especially near Colorado Springs) that will help you relax, recharge, and reinvigorate. Cañon City and Colorado Springs make the perfect jumping-off points for many of these beautiful, historic western locations. Before or after your rafting trip, try some of these great destinations to enhance your Colorado vacation!
Located on Main Street of the charming historic mining town of Frisco, Colorado, the Frisco Lodge Bed and Breakfast has been greeting guests with comfort, luxury, and old-world hospitality since 1885. A range of opulent rooms with refined furnishings will make you feel pampered and relaxed, and the beautiful cozy living room with a piano and fireplace will allow you to meet some interesting people and have a chat or a glass of wine in the afternoon.

Larger groups and families on longer stays can choose to stay in private, fully-equipped condos overlooking the park, all of which feature spacious living areas, superior facilities, and a complimentary gourmet breakfast each day. Dine in style at one of four restaurants and bars that serve an array of seasonal cuisine, unwind in the exclusive Aspire Spa with an indulgent treatment or massage, and enjoy a range of fantastic outdoor activities throughout the year, including hiking, biking, fishing, horseback riding, skiing, snowboarding, ice skating, and sleighing. Read more about Estes Park, one of the top Colorado destinations.
“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.”
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. 

The best time to visit Rocky Mountain National Park is from June to September when the snow is (mostly) melted and the hiking trails and attractions are accessible. Still, these four months are also the most popular times to visit, so if you'd rather experience RMNP in relative isolation and while wearing snowshoes or cross-country skis, visit between the months of October and May. Whether snow or sunshine, the park is open to the public 24 hours a day, 365 days a year, though some parts may be inaccessible. 
Solitude Cabins offers a rate to fit every budget and time of year, whether you want to get away in the winter for a snowy adventure, or your prefer to enjoy the colorful hiking trails of the summer. We do offer discounts and package specials, so please contact us well ahead of your trip to learn more. Our cabins comfortably house up to six guests.
Northern New MexicoRed River, New Mexico! A place where fresh powder winters meet refreshing summer days. Red River offers something for everyone with its convenient scenic location in the heart of Northern New Mexico’s Enchanted Circle. Red River is the place that awakens us each day by the soothing sound of a rushing river and then again each evening as the sun sets over main street. The mountain town of Red River is New Mexico True.
Estes Park is home to the headquarters of the Rocky Mountain National Park, and for many visitors, it’s the first stop en route to a Rocky Mountain vacation. Find yourself passing through to pick up maps and check trail conditions, or stay for a weekend getaway that offers unbeatable access to the Rockies, meaning you can hike all day and dine and unwind at night. The lively town has plenty of entertainment like the downtown Riverwalk,  Aspen and Evergreen Gallery, and the historic Stanley Hotel.
Unless you’re really into skiing or boarding, you probably haven’t considered a honeymoon in Colorado among your destinations, but you really should. While it is outstanding for those who like to glide down snowy slopes, the Rocky Mountain State offers a whole lot more for honeymooning couples. Not only is there over 300 days of sunshine a year to enjoy its dramatic mountain peaks, but it offers everything from hot springs, vineyards and countless microbreweries to a wide range of other outdoor adventures, like hiking, mountain biking, whitewater rafting and more. It also happens to be home to many fabulous resorts that are ideal for romance, including these.
The recreational activities are what draw most people to Maroon Bells. The hiking here is incredible, with all kinds of day hikes and backpacking areas. Mountain biking trails cover hundreds of miles. Fishing in lakes, ponds, rivers, and streams is popular in summer. In winter, people come here to ski, snowshoe, and snowmobile, making it a year-round outdoor playground.
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.
An alluring destination to explore throughout the year, Durango offers a wealth of activities for every season. From white water rafting to horseback riding, fishing and snowboarding, outdoor enthusiasts will be in heaven at Durango. Popular for its Durango train ride day trip, the famous line runs from the old mining areas in Durango and Silverton, where visitors can soak in breathtaking views of the mountain vistas against its black steam-powered engines. Explore the archaeological sites in Mesa Verde National Park, visit Henry Strater Theatre, the oldest running theatre in Colorado, and explore the downtown area to discover an array of lovely shops, galleries and eateries.
Home to the Lake Superior, Lake Michigan, Lake Huron, and part of Lake Erie, Michigan is rich in natural vegetation and beauty. Families looking for an adventure should explore the Upper Peninsula region that houses famous natural attractions such as the Porcupine Mountains, Pictured Rocks, Mackinac Island, Isle Royale, Tahquamenon Falls, and the Seney National Wildlife Refuge. Then there is the heavenly Lower Peninsula region with its placid lakes, rivers, forests, sand dunes and beaches. Canoeing, fishing, sailing, and motorboating are popular activities. You'll love returning to your Michigan cabin rental to unwind after an action-packed day exploring.
After facing near extinction last century, the bighorn sheep population is currently thriving: there are roughly 300–400 of these striking animals in the park. Look for them at the aptly named Sheep Lakes from May through mid-August, when the bighorns descend to eat soil and obtain minerals not found in their high mountain habitat. Their visits generally occur between 9 a.m. and 3 p.m.
Nature lovers can go hiking, white water rafting, horseback riding or climbing in one of the surrounding national parks, or you could choose to explore historic archaeological sites such as Hovenweep, Chaco Canyon and Mesa Verde. The Durango & Silverton Narrow Gauge Railroad is a highlight of any visit and you can combine various adventure sports packages with your scenic train ride. Keep reading for more Colorado points of interest. Things to Do in Durango

Nicknamed the “Mile High City,” Denver is a haven for outdoor-lovers year-round, making it one of the best weekend getaways in Colorado for any type of travelers. Bring your camera along to capture views of urban and natural scenery alike—Larimer Square and the 16th Street Mall are two essential sightseeing destinations for first-timers, and Mount Elbert is always looming large in the background. The real Denver attraction, though, is the culture, which you can discover on a walk through the city’s distinct neighborhoods, on a Denver sightseeing tour, or a bike and brewery tour (it doesn’t get more Denver than that).
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.
The Silk Pincushion is a lovely Victorian bed and breakfast in the heart of Golden that promises an unforgettable stay. Three beautifully decorated Victorian-style guest rooms exude luxury and charm with large beds dressed in homemade quilts, private bathrooms with showers, deluxe toiletries and soaps, and other modern amenities such as free wireless Internet throughout the house. Homemade breakfast is served each morning in the bright and sunny dining room, where you can relax over freshly brewed coffee and chat with the owners.
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.

Durango - very popular for romantic getaways in Colorado during the summer, and for good reason. The gorgeously restored Main Ave combines Victorian-era Hotels and Wild-West Saloons, giving the city a remarkable atmosphere. There's plenty of scenic drives nearby, and the steam-engine narrow gauge rail journey up to Silverton is a wonderful daytrip.

Colorado is a year-round destination that piques the imagination and inspires the soul with its dramatic landscape and natural beauty. The state is nothing less than stunning, with a diversity that ranges from the majestic Rocky Mountains to the rolling hills, rivers, streams, and high desert of the Colorado Plateau. Mountain towns beckon skiers, hikers, climbers, mountain bikers, and outdoor enthusiasts of all types, but are also great places to soak up some tranquility and enjoy the mountain vibe. Scenic drives through parks and along state highways are some of the best ways to see the amazing sites that the state has to offer. Remnants of the cultures that inhabited the area and the dinosaurs that once roamed the land can be seen and better understood by visiting some of the national parks and monuments. Colorado is an unbeatable destination that will make you rethink your future travel plans.


The suites have private balconies with a sunken living room. If you want to splurge, the most luxurious suite, the Centennial Suite, has a full kitchen, living area, dining area, private balcony, separate bedroom and an oversized Jacuzzi tub. Choose from five restaurants and lounges. The Swan offers fine dining in an elegant bistro setting, while the Garden Terrace is more casual. The Pub is the place to go to watch televised sporting events and the Golf Grille is conveniently located at the golf course. Take the complimentary shuttle to the Park Meadows Retail Resort for a day of shopping, or drive to Downtown Denver, 20 minutes away. Fly to Denver International Airport which a 30-minute drive away. Weekday rates start at $99 per night.
Guests are treated to a delicious gourmet three-course breakfast every morning along with complimentary bedtime snacks. An intimate library and comfortable lobby offer the perfect place to curl up with a book, an experience that is even nicer when it’s done in front of a crackling fire. The adjacent Rocky Mountain National Park provides a variety of activities from hiking and mountain biking to mountain climbing, fishing, and wildlife watching.
Beginning in Durango, the San Juan Skyway Scenic Byway is a complete loop that will take you up to Silverton, along the Million Dollar Highway to Ouray, over to Placerville, south to Telluride, Dolores, Mancos, and back to Durango. If you have less time or are only planning on heading in one direction, you can do the Silverton to Ouray section beginning from Durango, up to Silverton, over the Million Dollar Highway to Ouray, and beyond to Montrose or further north to Grand Junction.

Cripple Creek is best known as a historic mining and gambling town, but besides the fun and entertainment of its nine modern casinos, Cripple Creek offers diverse activities for all ages. You can satisfy your lust for adventure with white water rafting, river tubing, rock-climbing, mountain biking and off-road racing or explore the Trails of Gold network of hiking and biking trails through historic sites in the gold camp.
Dunton Hot Springs is a luxury hideaway with authentic nineteenth century hand-hewn log cabins and a bath house with natural hot springs in Colorado. Dunton attracts outdoor adventure enthusiasts as well as guests who are looking for a quiet place to relax in natural surroundings. The cabins are located in the San Juan Range of the Colorado Rockies 8,700 feet above sea levels. Guests have access to a two story library and an open-air wedding chapel. Visitors can keep in touch with the outside world through high speed wireless internet access and video conferencing.
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]
×