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. 

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
Endless mountain landscapes and sunny weather, Colorado is the perfect place to pack your backs and escape to for a few days. With an abundance of natural splendor, Colorado boasts a myriad of cities worthy of exploring. From luxury ski resorts to charming small towns and the world-famous Rocky Mountains, travelers are spoiled for choice with outdoor adventures. Get off the grid and soak in the crisp mountain air, where depending on the season, nature enthusiasts can hike through beautiful trails, go swimming in natural hot springs or hit the slopes. Cities filled with diverse wildlife and natural wonders, here are ten of the best weekend getaways in Colorado.
Does the AP realize they have just exposed Democrat hypocrisy? “Unauthorized border crossings are at their lowest levels in decades, Di Fi (D) .“We are currently experiencing the lowest number of (illegal) border crossings since 1971.” Gavin Newsome (D)We here can add to this Jason Crow who said “Democrats are going to push back legislatively and through the courts, to Trumps emergency declaration”. The declaration is because of drugs entering the country, human trafficking, and gangs entering the country. So, if Crow is going to “push back” Crow must support drugs entering the country, human trafficking and gangs entering the country.And who is the President with these low numbers? And those number can be lowered to zero, with the wall, or at the very least, numbers the country choose to let in and can handle.
Considered the base camp for the Rocky Mountain National Park, Estes Park is less than a 2-hour drive from Denver. Located near the east entrance to the Rocky Mountain National Park, Estes Park is a quiet area surrounded by protected land. Here you’ll find pristine wilderness with a myriad of both indoor and outdoor activities, from scenic hikes and bike trails to wine tasting and spa treatments. Take the Estes Park Aerial Tramway to the top of a small peak and soak in breathtaking panoramic views of the valley and downtown area, take a walk along the Riverwalk in Downtown Estes Park or take the kids to the Estes Park Ride-A-Kart & Cascade Creek Mini-Golf.
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.
A small city that packs a lot of punch for its size, Vail is one of the most beloved ski destinations in the country, where its not uncommon to spot a celebrity or two. Nestled between the Gore Mountain Range and Sawatch Mountain Range, this narrow alley is home to the largest single-mountain resort in the United States. While most visitors come to Vail for its famous 5,289 acres of ski slopes, in the summer visitors can also explore the Eagles Nest Wilderness Area and Holy Cross Wilderness area to hike the area’s rugged mountainside trails.
Would you like to stay in a historic red barn, a former milk room, or an original historic log cabin and get an idea of how the original Colorado settlers lived? Converted to the luxury Four Mile Creek Bed and Breakfast, this former 1885 homestead is a quaint reminder of the area’s adventurous past. With its main lodge building, old converted barn, and two log cabins, the Bed and Breakfast today offers rustic luxury and unparalleled comfort. The rooms are furnished with antique pieces and fireplaces, with luxurious bathrooms featuring claw foot tubs, conveying a sense of times gone by while providing entirely modern comfort and amenities.
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.

The Experience: Located in an 1882 converted saloon, the Sopris House is an upscale lodge full of character. It's operated by the aforementioned Eleven Experiences, a company that's amazing at curating travel adventures. Spend the day skiing greens, blues, and blacks. For skiers who love pristine powder and feel up for a challenge, you're in for a treat. Due to elevation, Crested Butte is known for its cat skiing (a term for superb, untouched-powder skiing) since it gets about 500 inches of snow each season, which is way above the average resort.
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.
In Michigan, more than half of the 24,313 accommodations are house rentals, which represent 53.55% of its available accommodations. In addition, these properties have a median size of 1,840 ft² as well as cost, on average, $332 a night. Moreover, these properties are optimal for 8 as that is the average number of vacationers house rentals can host in Michigan. If you are searching for another type of accommodation, you can look for many other offers, such as hotel rooms, which are the other very popular type of property in Michigan. While house rentals in Michigan have an average size of 1,840 ft², hotel rooms have an average size of 420 ft².
The Rocky Mountain National Park Act was signed by President Woodrow Wilson on January 26, 1915, establishing the park boundaries and protecting the area for future generations.[2] The Civilian Conservation Corps built the main automobile route, Trail Ridge Road, in the 1930s.[2] In 1976, UNESCO designated the park as one of the first World Biosphere Reserves.[6] In 2017, more than 4.4 million recreational visitors entered the park.[7] The park is one of the most visited in the National Park System, ranking as the third most visited national park in 2015.[8]
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.
The Western Slope has plenty of charms, including being a dinosaur mecca with plenty of hands-on science, and is the heart of Colorado’s agricultural region. At the Museum of Western Colorado’s Dinosaur Journey, visitors can get up close and personal with dinosaur skeletons, a working paleontology lab and realistic robotic dinosaurs. Dedicated to “putting science in the hands of kids,” the Western Colorado Math and Science Center features interactive exhibits in biology, physics, earth and space science, and electronics. From June through October, orchards are laden with some of the sweetest harvests around: cherries, grapes, apples, plums, pears, apricots and peaches. Take an orchard tour or check out the myriad of roadside stands selling fresh produce, jams and ciders. For great biking or strolling, the Colorado Riverfront Trail winds for more than 18 miles through the city of Grand Junction’s picnic grounds, botanical garden, protected wetlands and fishing pier. Buy one/get one free passes are available for six major attractions from the Grand Junction Visitors Center. This “Map to Adventure” includes Dinosaur Journey, Museum of the West, Cross Orchards, the John McConnell Math & Science Center, The Art Center and the Western Colorado Botanical Gardens.
Considered the base camp for the Rocky Mountain National Park, Estes Park is less than a 2-hour drive from Denver. Located near the east entrance to the Rocky Mountain National Park, Estes Park is a quiet area surrounded by protected land. Here you’ll find pristine wilderness with a myriad of both indoor and outdoor activities, from scenic hikes and bike trails to wine tasting and spa treatments. Take the Estes Park Aerial Tramway to the top of a small peak and soak in breathtaking panoramic views of the valley and downtown area, take a walk along the Riverwalk in Downtown Estes Park or take the kids to the Estes Park Ride-A-Kart & Cascade Creek Mini-Golf.
Central Colorado - Pikes Peak RegionNestled within majestic Rocky Mountain scenery, Cripple Creek offers fun and adventures for the entire family. Try your luck in one of our exciting casinos, check out our fascinating museums, or explore our many history-rich activities such as a ride on the CC&V Narrow Gauge Railroad or a 1,000 foot descent underground into the Mollie Kathleen Mine.
Head to Denver, Colorado where you can see shows, visit museums and sample new flavors at gourmet restaurants. The Curtis – a DoubleTree by Hilton is a boutique hotel with 336 innovative accommodations, a retro dining experience and a state-of-the-art fitness center. The Bigger Better Deal Rooms offer 350 square feet of living space and views of downtown Denver. There are three types of suites to choose from: a KISS Suite, a Rolling Stones Suite and a suite dedicated to the Spice Girls. Guests can also stay in a “Hyper Themed” room on each of the 13 themed floors, such as the Jimmy Buffett Suite and the Ghostbusters Suite.

Colorado Springs, nestled at the foot of the majestic Rocky Mountains, offers spectacular scenery and amazing opportunities for a private, quiet, and romantic getaway. Book a murder mystery or wine and dinner trip in the Scenic Vista dome car on the Royal Gorge Railroad. This glass-topped car skims along the base of the narrow canyon along the Arkansas River. For an intimate view of the astonishing grandeur of this area, spend some time at the Royal Gorge Bridge and Park soaring in a gondola or on a zipline. For a bonus adrenaline rush, take a hand-in-hand stroll over the quarter-mile Bridge, suspended 955 feet over the tumbling river. Stop for breakfast or lunch at the French-inspired La Baguette Bakery and Cafe and enjoy a seasonally inspired menu. Share some sweet and savory fondue dipping sauces over an amorous dinner in the intimate interior of The Mona Lisa.

The town of Dolores may be small, but it’s well-worth spending some time in,  tucked in a magnificent canyon with the picturesque Dolores River cutting along one side and rock cliffs on the other. The second largest reservoir, McPhee Reservoir, can be found here, and  San Juan National Forest, just a mile from town, provides excellent opportunities for fly fishing, hiking, and biking. In addition to outdoor activities, the town boasts four parks, a brewpub and a unique mix of restaurants and shops.
The unspoiled beauty of Rocky Mountain National Park draws thousands of visitors every year. With over 50 placid lakes and babbling streams, this is a popular fishing destination for both locals and visitors alike. In order to fish within the park, please note that you will need a valid Colorado fishing license. You can trek through over 355 miles of hiking trails or stick to the park roads for a bicycle ride suitable for all ages. After exploring, head to the Visitor Center to learn about the animals and plants you encountered on your hike or bike ride. If someone in your group loves horses, consider visiting the Glacier Creek Stables for the opportunity to see the area on four legs rather than two.
There are 14 individually decorated guestrooms, each furnished with rustic décor and modern amenities. Floor-to-ceiling natural stone fireplaces create a cozy ambiance, and handcrafted beds and lush linens beckon you to try them. Relax in the comfort of your room or enjoy a pampering in-house massage before heading out into town to enjoy an exceptional dining experience at one of the many local restaurants.

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.
Garden of the Gods Park is a registered National Natural Landmark comprised of 1,300 acres of magnificent views and stunning red sandstone formations. TripAdvisor® users voted Garden of the Gods the #1 park in the U.S. and #2 park in the world. Make sure to snap some selfies of you and your partner smooching under Kissing Camels and holding up Balanced Rock.
A romantic weekend at the Castle Marne Bed and Breakfast on Capitol Hill in Denver will transport you to more elegant and romantic times with its nine magnificent rooms accented by antique Victorian furniture, fine décor, canopy beds, and fluttering curtains. Of course, they all have modern bathrooms with whirlpool or claw foot bathtubs and other contemporary amenities you simply cannot do without.
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.
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.

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.

Aspen is a lovely town, best known for phenomenal skiing, but Aspen offers a host of other outdoor activities, such as cycling, hiking, kayaking, fly fishing, and horseback riding. Celebrate your romantic connection with a spectacular hot air balloon ride over the four mountain areas of Buttermilk, Snowmass, Aspen, and Aspen Highlands at sunrise or sunset while sipping champagne and indulging in chocolate-covered strawberries. Pamper each other with a customized couple’s massage at the Remede Spa at the St. Regis Hotel, then luxuriate in the hot tub where three waterfalls tumble down a stone wall. Enjoy some French cuisine and ample wine choices at the Rustique Bistro.
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.
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.
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.
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.
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. 
Enos Mills, the main figure behind the creation of Rocky Mountain National Park, enjoyed walking to Lily Lake from his nearby cabin. Wildflowers are common in the spring and early summer. In the winter, the trail around the lake is often suitable for walking in boots, or as a short snowshoe or ski. Other lakes in the Wild Basin include Chasm Lake, Snowbank Lake, Lion Lakes 1 and 2, Thunder Lake, Ouzel Lake, Finch Lake, Bluebird Lake, Pear Lake, and Sandbeach Lake. Many of the lakes have backcountry campsites. Waterfalls include Ouzel Falls, Trio Falls, Copeland Falls, and Calypso Cascades.[47]
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]

Rooms are beautifully decorated with plush furnishings and luxurious fabrics and boast private en-suite bathrooms and modern amenities, including air-conditioning, coffeemakers, and free high-speed wireless Internet access. Flat screen televisions and cable TV provides ample entertainment and a delicious home cooked breakfast is served each morning. The inn is within close proximity to several popular Golden attractions, including the world-famous Red Rocks Amphitheatre and Golden Gate State National Park.
Located near the towns of Cortez and Mancos, Mesa Verde is reached by a long road that leads high up above the surrounding landscape. The drive from the highway up to the site takes about 45 minutes. Near the highway is one of the visitor centers, where you can get information on the park and road conditions before driving up. You can book a ranger-led tour of Cliff Palace when you arrive so you know what time to show up for the one-hour tour.
Bedrooms enjoy air-conditioning and central heating, mini refrigerators, and free Wi-Fi while private bathrooms have rain showers and Jacuzzi whirlpools. A delicious full English breakfast is served each morning in the inn’s elegant dining room, and lunch and dinner can be taken at the inn on request. The inn is within walking distance of several excellent restaurants in Colorado Springs as well as other entertainment.
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.

Victorian elegance sets the standard for southwestern hospitality at the General Palmer Hotel, located in the heart of Durango, Colorado. Opened in 1898, it was named for one of this town’s founding fathers and remains as the only historical Four Diamond in southwestern Colorado. In the heart of downtown Durango, you can park your car and enjoy easy walking distance to art galleries, specialty stops, and a variety of restaurants.
Alternatively, you can just stay at the Inn and enjoy the comfort and luxury of this lovely historic Victorian house with exquisitely appointed rooms and modern amenities. Enjoy a gourmet breakfast and lavish afternoon tea, sit in the beautiful garden with a book, or go explore lively Breckenridge with charming bars, restaurants, shops, and galleries.
My mind calm, the knitting absorbed any excess energy and left my senses free to absorb the stunning surroundings. Feeling no need to move, I watched the silhouettes of fish moving upstream, hummingbirds zip over my head, and a northern harrier cruise over the grassland, looking for prey. Months later, I can imagine every detail of that spot on the bank anytime I close my eyes.
A small city that packs a lot of punch for its size, Vail is one of the most beloved ski destinations in the country, where its not uncommon to spot a celebrity or two. Nestled between the Gore Mountain Range and Sawatch Mountain Range, this narrow alley is home to the largest single-mountain resort in the United States. While most visitors come to Vail for its famous 5,289 acres of ski slopes, in the summer visitors can also explore the Eagles Nest Wilderness Area and Holy Cross Wilderness area to hike the area’s rugged mountainside trails.

Loveland Ski Area is near to the hearts and homes of generations of Colorado skiers and riders. Just 53 miles from Denver, Loveland offers uncrowded slopes, remarkable terrain, free close-in parking and a season that lasts from October through May. Loveland also averages 400″ of snow each season – more than any Front Range or Summit County resort. Loveland is a perfect place for those that simply want to ski and ride. This is Colorado. Welcome home.


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.
Crested Butte - this relaxing destination in Northern CO remains one of the state's premier outdoor playgrounds. It's fun to explore, and if you've never tried hanging whitewater rafting, this is a great spot to start. For activities a little easier on the blood pressure, try one of the many local area hikes, or a romantic evening with dinner at Le Bosquet or Timberline. 

Founded in 1859, Breckenridge is a historic town that rose in popularity for its fantastic ski resorts. While Breckenridge is known as a skiing mecca and surrounded by stunning peaks, the area has much more to offer. Sitting 9,603 feet above sea level, visitors can take a walking tour through the central district to hear stories of those who came here to find gold, shop for unique souvenirs, such as jewelry and antiques, or indulge in a day wine tasting or brewery visits along the Main Street center. Those who want to have an outdoor adventure other than skiing can try their hand at snowshoeing, sledding, tubing and even dog sledding, which can be arranged with one of the many companies available throughout the town.
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.
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.

This opened the Loveland Valley Ski Area in 1961 as well as some south-facing slopes to the north of Chair 2 in 1965.  During the 1980’s, Loveland upgraded the old Chair 2 with a high-capacity Yan triple chair. This provided better, more reliable access to beginner and intermediate terrain. In 1989, a new Valley lodge was constructed, allowing for better guest services at the beginner and racing hills.
That was not my intention. We planned a trip from Florida to the Rocky Mountains of Colorado for one of my freelance writing projects, and originally scheduled a day in Denver (at 5,280 feet in elevation) to acclimate. Frontier Airlines had a different idea. I heard alternatively that our plane had a mechanical issue, that weather in the Midwest grounded the flight, and that the crew went on strike. Regardless, the airline cancelled our original flight.
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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