There are four ecosystems, or zones, in Rocky Mountain National Park: montane, subalpine, alpine tundra, and riparian. The riparian zone occurs throughout all of the three other zones. Each individual ecosystem is composed of organisms interacting with one other and with their surrounding environment. Living organisms (biotic), along with the dead organic matter they produce, and the abiotic (non-living) environment that impacts those living organisms (water, weather, rocks, and landscape) are all members of an ecosystem.[66]
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.
Nothing is more quintessentially Colorado than the city of Golden, which is known for two things: outdoor activities and beer. Your travel plans practically write themselves—go to Lookout Mountain or White Ranch Park for hiking and biking, and then tour the Coors Brewery (the largest single-site brewery in the world) or grab craft beers along with the locals at Golden City Brewery.
Early to mid-summer brings endless fields of wildflowers to the Rocky Mountains, and you'll find plenty of backroads throughout the state where you can take in the view. Take a four-day drive from Denver to Aspen. The route initially heads north through Boulder up to Rocky Mountain National Park. Visit the alpine town of Estes Park and stay in the Stanley Hotel, featured in the movie, "The Shining." You'll see long-forgotten ghost towns, the tallest mountain in the state and more than 200 species of flowers from mid-June through early August. You'll also find scenic backroads in the southern part of the state winding through the San Juan and Sangre de Cristo Mountains.
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 
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.
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.
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]
Sleep helped the altitude sickness, and after a full night in one of the research site’s cabins, I felt much revived. Brian fished in the morning and I scrambled up a rocky outcropping with a graduate student studying pikas through their poop (a non-invasive way to analyze stress levels of this small mammal that looks like a cross between a rabbit and a mouse): but our afternoon was free. What to do?
Surrounded on three sides by Rocky Mountain National Park, Grand Lake is aptly known as the “Western Gateway” to the Rockies. Because of its close proximity to the wilderness, it’s one of the best weekend getaways in Colorado for an itinerary full of adventure. Strap on your cross-country skis or rent a snowmobile to explore the area’s large network of trails no matter the weather. For indoor entertainment, head to the Rocky Mountain Repertory Theatre, which puts on professional shows loved by kids and parents alike.
Breckenridge CO Romantic Vacation Rental Condos, Villas & Cabins - check out some of the best deals in romantic Breckenridge CO lodging. Rates start as low as $69/night, and you can choose from locations in downtown Breckenridge or ski in/ski out slope side accommodation. Suites are roomy and many offer amenities like wireless internet, satellite TV, fireplace and even jetted tubs.
Fishing was a popular pastime for early visitors to the park, and it remains so today, with anglers catching several types of trout, including brown, brook, rainbow and cutthroat. Note: A valid Colorado fishing license is required for all persons 16 years of age or older to fish in Rocky Mountain National Park. For current Colorado fishing license fees visit the Colorado Division of Wildlife website.
Popular during both the winter and the summer, Crested Butte offers year-round activities that appeal to outdoor enthusiasts. Soak in the crisp mountain air after taking the Silver Queen lift up to 11,875 feet up to see Crested Butte from above, visit the pedestrian-friendly city center with its myriad of locally owned shops, or choose your pick between summer and fall mountain biking and the area’s numerous trails. Those with little ones can head to the Trailhead Children’s Museum, Crested Butte Mountain Heritage Museum or find swimming and hiking at Meridian Lake in the summer.
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]
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]
Telluride offers the quintessential Colorado mountain town experience. Not only are its streets lined with grand Victorian buildings, but it has become a hub for adventurers, athletes, and artists of all types, nestled in an isolated box canyon, far from the chaos of modern life. While there’s no skiing this time of year, visitors can still take a ride on the gondola up the mountain to get a bird’s eye view of the town and the breathtaking surrounding landscape. There’s also the opportunity to hike to the state’s longest free-falling waterfall, Bridal Veil Falls, enjoy fantastic fishing, golfing and biking. This little town is big when it comes to festivals too, with the annual Bluegrass Festival bringing a multitude of bluegrass bands to the area to enjoy the sun and the tunes in the outdoor amphitheater. 
Tucked deep in the San Juan Mountains in southwestern Colorado, this carefully restored 19th-century ghost town and natural spa is surprisingly well appointed. The rugged, old-timey building exteriors hide high-end features such as cathedral ceilings, air conditioning, and gas fireplaces. Dolores has four parks and a peaceful bike trail that takes peddlers along the tumultuous Dolores River. You can enjoy hands-on exhibits and a nature hike at the Anasazi Heritage Center, or explore an exact replica of the original narrow-gauge rail car, the Galloping Goose. Share a romantic meal with tasty cocktails at Sophia’s Bistro.
Escape from the city with a romantic getaway just 30 minutes west of Denver to the Highland Haven Creekside Inn in Evergreen. This family-owned and operated Colorado Mountain B&B will charm you upon the moment of entering the wooded grounds. Their website describes it as an opportunity to create your own “Colorado Woodland Fairytale.” And it is that adorable. Rustic. Quiet. Charming. And far enough away from it all to feel like a romantic getaway.
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.
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].
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.
A nature lover’s paradise, Colorado is filled to the brim with beautiful landscapes, offering travelers over 300 days of sunshine to come and explore its diverse areas. From the majestic Rocky Mountains to picturesque prairies and cosmopolitan cities, Colorado is surrounded by vibrant outdoor attractions, diverse wildlife and scenic byways just begging to be explored. Whether you hit the slopes at a luxury ski resort, hike the trails at a National Park or take a scenic drive through the countryside, Colorado has so many great things to see and do throughout the year. Perfect for families, couples and solo travelers who are looking for an outdoor adventure, read on to discover the best places to vacation in Colorado.
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.
The Experience: Located in a Western ghost town in the Rockies, Dunton Hot Springs is the rustic escape for families that want to experience the great outdoors without compromising luxury or comfort. Dunton offers perma-tents, tepees, and cabins for lodging. This remote destination hotel will get you off the beaten path and out of your comfort zone in the best, most luxurious way possible.
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.
