Perched on the banks of the San Juan River in Pagosa Springs, this hot-springs haven offers a Relaxation Terrace with five pools that are only accessible to the of-age crowd. The terrace is tucked above the kid-friendly main springs area, and includes a waterfall, fire pit, roman shower, jetted tub and river overlook, along with blissful quiet time. Access to the terrace is complimentary for hotel guests and is available to day visitors for a small fee. 
With many peaks and granite rock formations, there are lots of rock climbing opportunities. Some favorite climbs include the aptly-named Lumpy Ridge and Longs Peak. Whether you prefer bouldering, mountaineering, rock climbing, or ice climbing, the park has something for climbers of all levels. In the winter, opportunities for snowshoeing, skiing, and sledding draw all levels of explorers. If you're in the western part of the park, visit Grand Lake. This breathtaking lake is the state's largest natural body of water, promising scenic views and plenty of outdoor fun. 
Thanks to a wide variety of things to do and places to see, Boulder is arguably one of the best weekend getaways in Colorado—if not the whole Western United States! This college town (home to University of Colorado Boulder) has it all: hike the Flatirons or Chautauqua Park in the morning, tour the Celestial Seasonings Tea Factory and Leanin’ Tree gallery in the afternoon, and then head to Pearl Street for shopping, drinking, and dining at night—and get around on the Boulder Creek Path in between. A Boulder bike tour helps you fit in even more sightseeing, perfect for a quick itinerary. 

With over 1,800 acres of skiable terrain in Beaver Creek, it’s no wonder this resort town is a top choice for a weekend trip in Colorado. Beaver Creek is home to the Birds of Prey downhill course, too—a difficult run that’s often included in World Cup races in early December. Not up to the challenge? No worries. There’s plenty more to do like catching a show at the Vilar Performing Arts Center or hanging out at the Beaver Creek Resort. Swing by in the afternoon for a taste of their fresh-baked (and free) chocolate chip cookies.

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.
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 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.


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.
Castle Mountain Lodge got its start in the late 1950s and became the first new cottage to be built and rented annually. Soon after the first building was built, five more cottages were constructed. Today, the dog-friendly lodgings feature one-bedroom, two-bedroom and three-bedroom options and include access to the public hot tub, rooms with private, indoor hot tubs and rooms with private, outdoor hot tubs. Get all the details and make your reservation online here.
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.
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!
You have never seen a Y like this!  We offer over 200 family cabins ranging from 2-4 bdrms, which can hold up to 10 people.  Be close to the main campus & activities or far from it all, in secluded woods.  Our cabins are fully furnished and include eating & cooking utensils, plus linens & towels.  Many free activities are available - we offer more activities onsite than any other area property!  YMCA of the Rockies - Estes Park Center Details
Most visitors to the park drive over the famous Trail Ridge Road, but other roads include Fall River Road and Bear Lake Road.[95] The park is open every day of the year, weather permitting.[96] Due to the extended winter season in higher elevations, Trail Ridge Road between Many Parks Curve and the Colorado River Trailhead is closed much of the year. The road is usually open again by Memorial Day and closes in mid-October, generally after Columbus Day.[93] Fall River Road does not open until about July 4 and closes by, or in, October for vehicular traffic.[97] Snow may also fall in sufficient quantities in higher elevations to require temporary closure of the roads into July,[49][93] which is reported on the road status site.[95]
Basking in your newlywed glow, discover a luxurious ski in/ski out mountain retreat with resort amenities, tucked away on a quiet mountainside in exclusive Bachelor Gulch. Beautiful woodwork gives this residence an elegant alpine lodge ambiance. Design features include stately vaulted ceilings, natural log walls, hardwood floors, and a floor-to-ceiling stone fireplace. Relax on the leather sofas around the fireplace, and even cook an intimate meal in the impressive chef’s kitchen, which features granite countertops, stainless steel appliances, and a spacious island. Enjoy the rustic charm of the Colorado mountains in every hand-selected detail from the light fixtures to its eight cowhide chairs. Located between Beaver Creek and Arrowhead, honeymooners can take advantage of Bachelor Gulch’s natural beauty, fine dining, arts, and culture. And while you’re here, enjoy complimentary access to the coveted Ritz-Carlton Bachelor Gulch guest amenities. These include a 21,000-square-foot spa, hot and cold plunge pools, and co-ed grottos with steam rooms and saunas, perfect for unwinding after your once-in-a-lifetime wedding celebration.
Some of the highlights along the way are the towns of Silverton, Ouray, and Telluride. Set at more than 9,300 feet and surrounded by mountains, Silverton has one main street with a few shops and restaurants. In summer, it can be ridiculously busy, but in winter, most of the establishments are closed, and the place can feel like a ghost town. On the edge of town, Silverton Mountain is an old school ski "resort" with great backcountry downhill skiing for advanced skiiers. Ouray, with a sign at the main lookout calling it the "Switzerland of America," is another mountain town, known for its hot springs. If you choose to do the Skyway, you can stop in at Telluride. Known for the Telluride Ski Resort, this is one of the most beautiful mountain towns in America, with a traditional main street and gorgeous mountain scenery. You can take a free gondola up the mountain for a better look over the area.
Ouray is one of the many historic Colorado mining towns that have re-invented themselves as outdoor playgrounds for adventure sport fanatics. The town is steeped in history, which you can explore at the Ouray County Historical Museum, the Ouray Alchemist Pharmaceutical Museum or on a tour of the Old Hundred Mine, before visiting one of the natural thermal pools that have been attracting visitors for over 100 years.

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.


Rocky Mountain National ParkAt the edge of Rocky Mountain National Park, Grand Lake is the deepest natural lake in Colorado, dipping to 265 feet. Fed by high mountain runoff, the lake is clear and pristine. In the summer, you can rent a boat, bring your own or simply enjoy the gentle lapping of the waves from the sandy shore. Grand Lake connects with Shadow Mountain Lake via a canal, and just down the road is Lake Granby, the second largest body of water in Colorado.
Relax to the sounds & beauty of Fall River.  Our resort is perfectly located halfway between the Village of Estes Park & Rocky Mtn National Park (2.5 mi each way).  Enjoy a furnished 1,2, or 3 bedroom mountain cabin/condo with a full kitchen, jacuzzi spa tub or hot tub, fireplace, & gas grill.  Each bedroom has it's own bath!  Save $'s - cook breakfast in, then grill dinner.  Winter deals & packages available.  River Stone Resorts & Bear Paw Suites Details
The historic Brown Palace, located in downtown Denver first opened its doors in 1892. Since then, the hotel has accommodated celebrities, presidents and other dignitaries. If you are planning to do a lot of sightseeing on your trip, this unique property is conveniently located within walking distance of the pedestrian 16th Street Mall, the State Capitol, the Denver Center for Performing Arts and and Coors Field Baseball Park. The hotel is built around a central atrium; when in the lobby, you can enjoy soaring ceilings and when going to your room, you'll have a view of the classically furnished lobby below on your city vacation.

Designated as an All American Road, Trail Ridge Road crosses from beautiful pine forests to alpine tundra at some of the highest points in Rocky Mountain National Park. The drive is so high, that visitors will climb 4,000 feet in a matter of minutes! Outside of the car, plant and wildlife flourish throughout the drive -- moose, bighorn sheep and around 200 species of alpine plants are a few of the amazing sights that you might see. With a top altitude of over 12,000 feet, slow speeds and deep breaths are recommended. Janine Dawley, www.sharetheexperience.org


Lulu City, Dutchtown, and Gaskill in the Never Summer Mountains were established in the 1870s when prospectors came in search of gold and silver.[19] The boom ended by 1883 with miners deserting their claims.[20] The railroad reached Lyons, Colorado in 1881 and the Big Thompson Canyon Road—a section of U.S. Route 34 from Loveland to Estes Park—was completed in 1904.[21] The 1920s saw a boom in building lodges and roads in the park, culminating with the construction of Trail Ridge Road to Fall River Pass between 1929 and 1932, then to Grand Lake by 1938.[22]

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. 
Just outside the towns of Grand Junction and nearby Fruita is Colorado National Monument. A scenic road snakes its way through some outstanding scenery. This is not typical mountain scenery, but a landscape of huge rock spires, cliff walls, canyons, and desert-like surroundings with small trees and scrubby bushes. Most people drive through the monument along Rim Rock Drive and stop at the lookouts that peer over the landscape below. The road is also a popular road biking area, with hearty souls peddling their way up to the lookouts. A number of day hikes access some scenic areas of the monument, most of which involve moderate elevation changes that range from approximately 300 feet to more than 1,000 feet.
I am convinced Chautauqua is Colorado’s best-kept secret and I’m amazed how few locals know about its charms. Located at the base of the Flatirons in Boulder, this National Historic Landmark has rental cottages that are surrounded on three sides with open space that includes 48 miles of hiking trails and thousands of acres of natural lands begging to be explored. On weekends in June, Theatre-Hikes Colorado will take audience members on a moderate hike amidst the scenic backdrop of Boulder Open Space while scenes from “Snow White” are performed along the way. On June 29, don’t miss the Colorado Music Festival’s Young People’s Concert, which is a is a narrated work about a cartoon score being performed at a symphony concert (tickets are $8). The historic Chautauqua Dining Hall (a tradition since 1898) has recently undergone a huge overhaul and the wraparound porch offers some of the best patio dining in Colorado. If you visit on a Saturday, be sure to also visit the Boulder’s Farmer’s Market (the largest in Colorado). Not to be forgotten are Pearl Street Mall’s restaurants, shops, people-watching and Pop Jet Fountain–they never fail to entertain.
Stay in 1 of our 5 renovated riverfront cabins for a romantic atmosphere away from daily routine.  With a private hot tub overlooking Fall River & a jetted spa tub for 2 in the living area, fireplace, full kitchen & gas grill on the deck, you can rest & reconnect.  Nestled among tall Ponderosa pines just 1 mi. west of downtown, with easy access to RMNP.  Fall River Cabins Details
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]
You can climb and slide on the dunes or test your boarding skills cruising down the sand. On hot days, children and even adults enjoy splashing around in the Medano Creek that runs along the base of the dunes. Hiking trails run through the forest on the edge of the dunes. The four-wheel drive Medano Pass Primitive Road opens up some unique terrain, and car camping sites are located along the roadside. Regular camping is available at the Pinon Flats campground, which offers both tent and RV campsites.
Look no further for Estes Park cabins to put you at the foot of Rocky Mountain National Park! Whether you’re looking for a quiet and soothing River Cabin or an adventurous and nostalgic Theme Cabin, Brynwood on the River has an array of cabin rentals in Estes Park! Need something spacious yet comfortable or budget and family-friendly? Our Vacation Homes and Motel Rooms provide a great selection for you to choose from. 

Manor Vail Lodge - ideal for both winter and summer romantic getaways in Vail. The spacious condo-style studio & 1 bedroom suites are roomy (700+ sq ft) and have private balconies with creek or Mountain views, cozy fireplace, full kitchens and Queen or King beds. Outside are 2 pools, hot tubs, fitness and spa facilities, local free shuttle (short walk) and Golden Peak Chair 6 & Gondola 1 (5 minute walk away). 2017 ERV Rating* for Couples - Romantic Lodging in Vail, CO: 91% - Excellent. (595 E. Vail Valley Dr, Vail, CO  800-950-8245)

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.
Take a 7.5 mile hike on the Yampa River Core Trail along this picturesque river, and then jump into one of the hot pools at the Strawberry Park Hot Springs. Tread of Pioneers Museum tells the story of Steamboat Springs past and is located in a beautiful Queen Anne-style Victorian house. Take a ride with the Steamboat Scenic Gondola up the slopes of Mount Werner for some spectacular views of the area. 

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. 
Region 4 is the heart of the park with easy road and trail access, great views, and lake hikes including the most popular trails.[35] Flattop Mountain is a tundra hike and the easiest hike to the Continental Divide in the park. Crossing over Flattop Mountain, the hike to Hallett Peak passes through three climate zones, traversing the ridge that supports Tyndall Glacier and finally ascending to the summit of Hallett Peak.[44]
The Experience: While news just broke that the old-timey train that travels along the mountainside through Pikes Peak will be closed for repairs for the rest of 2018, the nearby town of Manitou Springs should definitely stay on your bucket list. This resort town, located outside of Colorado Springs, is a true gem, complete with 1000-year-old Anasazi (the Ancestral Puebloans) cliff-dwelling ruins in the Mesa Verde National Park and a Victorian-era castle museum and tea room. Stay at the quaint Holden House bed and breakfast.
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.
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.
Stay up past your (kids’) bedtime at this grown-ups-only urban retreat that fuses art and sustainability. Side-by-side Victorian homes sit on the edge of downtown Denver, putting you close to the city’s vibrant dining and nightlife. Many rooms feature murals or paintings by local artists, so you can soak up some culture from your in-room whirlpool tub. There are eco-friendly perks throughout, like organic toiletries and gardens where the onsite chef grows herbs and veggies for your complimentary breakfast.
The Signature Jill's Restaurant has an outdoor terrace with mountain views and serves contemporary American & French cuisine with organic ingredients. The T-Zero Lounge serves signature martinis, cocktails and fine wine. Live entertainment is offered almost every night. If you are celebrating a special occasion, the private dining room can seat up to 25 guests. The terrace can be reserved for private parties in the summer. Room rates start at $249 per night. Things to Do in Boulder
Sonnenalp Hotel is often named as Vail’s top hotel, in a place that’s already home to countless exceptional properties. A Bavarian-style lodge, it offers Old World Alpine traditions merged with the spirit of the west. All rooms offer views of either Gore Creek or Vail Village and boast impressive amenities like goose down comforters and handmade furniture, a fireplace, marble bathrooms with heated floors and an oversize tub. The impressive breakfast buffet is a great way to fuel up for activities, which includes spa services, a private 18-hole golf course, hotel ski guides, and more.
Dinosaur National Monument is so diverse that the possibilities here extend well beyond the archeological aspects, from a simple driving tour through the monument to hiking, fishing, rafting, and camping. A number of scenic drives run through the park on both paved and four-wheel drive roads. Hiking trails range from short nature walks of less than a half mile to eight-mile-long day hikes. Campgrounds, some of which are open to both tents and RVs and others open only to tents, are spread around the park. It's possible to spend a few days in this area if you are interested in exploring the park.
Indiana is well known for its farms, speedways and sports, and there is plenty more to experience for every visitor. A diverse economy, historic sites, outdoor activities, great food and hidden attractions are just some of the interesting things about this Midwestern US state. A trip to Indiana is sure to provide you with all that you look for in a vacation.

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.


Rock climbing and mountaineering opportunities include Lumpy Ridge,[85] Hallett Peak, and Longs Peak, the highest peak in the park, with the easiest route being the Keyhole Route. This 8 mi (13 km) one-way climb has an elevation gain of 4,850 ft (1,480 m). The vast east face, including the area known as The Diamond, is home to many classic big wall rock climbing routes. Many of the highest peaks have technical ice and rock routes on them, ranging from short scrambles to long multi-pitch climbs.[86]


Take in the beautiful scenery of Colorado's Front Range, the gateway to Rocky Mountain National Park, as you zip through the trees! Just a 30-minute drive from downtown Denver lie three of Colorado’s longest zipline tracks. 6-line Zipline: Enjoy 4 hours of fresh air, scenic views and thrills on the 6-line zipline in the Rocky Mountains. Ride on six lines that range from 850 feet (259 m) to 1,900 feet (579 m). Soar through the treetops and experience three of Colorado’s longest ziplines! There is a 10-minute uphill hike between the first and second zipline and minimal walking between the others; above-average physical condition is recommended.
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.

Summer nights are long in Colorado, and after dinner Brian and I still had time for a shoreline walk around the Barker Reservoir, rimmed by mountains and fed by a cool and clear river. I took photos of the baby Canada Geese near shore, a speck of black in the middle of the water that turned out to be a cormorant, a hummingbird settled against a tree branch, while Brian cast a line. But I really didn’t want to move.

Take the world’s largest outdoor mineral hot springs pool (Glenwood Hot Springs), add an adventure park built on top of a mountain (Glenwood Caverns Adventure Park), sprinkle in the Roaring Fork Valley’s crimson rocks and emerald forests and you have a memorable family vacation just a few hours from Denver. The new Historic Fairy Caves Tour at Glenwood Caverns Adventure Park has sections never opened to the public before, takes 50 minutes and has only 12 stairs (perfect for families with small children than the tour of King’s Row, which has 127 steps each way). Also, don’t miss the adventure park’s thrill rides including the Cliff Hanger Roller Coaster, bungee jumping station, zipling, giant canyon swing, alpine coaster, laser tag and much more. Glenwood Hot Springs is celebrating its 125th birthday this year, so guests get in free on their birthdays. Glenwood Canyon Resort has white water rafting on the Colorado River and for an extra thrill, soar on the zipline across the river or test your mettle on a ropes course. Grab your bikes and take the paved Rio Grande Trail, which winds along the Roaring Fork River from Glenwood to Aspen. If you visit mid-week, pack a picnic and enjoy free concerts at Two Rivers Park on Wednesday. For a night out on the town, your family will love the Glenwood Vaudeville Revue dinner variety show.
Morrison is not a very far drive from Denver, but you’ll still feel like you’ve escaped for a special weekend away for two. This bed and breakfast is a beautiful spot to celebrate Valentine’s Day, an anniversary or any special occasion. You’ll love the amazingly breathtaking views from the hot tub suites, with stunning panoramas of the Colorado evergreens covered in snow. Plus, Arrowhead Manor is just a short drive to The Fort restaurant for an incredibly romantic meal. There are also many other fun things to enjoy during your escape for the weekend, as you’ll be close enough to enjoy any of the entertainment options in Denver, or even catch a show at Red Rocks, depending on the season.
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]
×