Rising from 7,800 feet to 12,000 – even 14,000 feet in some places – RMNP is a high-elevation park and if you don't give yourself time to adjust to the thinner atmosphere and lower oxygen levels, you could run the risk of getting the headaches, nausea and disorientation characteristic of altitude sickness. Along with taking a day or so to acclimate to the high altitude, you should make sure to consume plenty of water and food to ward off symptoms.
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.
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. 
Golden is less than an hour drive from Denver and you’ll love escaping to its stunning views and small-town feel. There are lots of amazing restaurants to check out, some fantastic theater to enjoy and a long street filled with tons of quaint shops, perfect for browsing. Book your room at the Dove Inn Bed and Breakfast and you’ll also have a romantic getaway retreat that is very affordable. You can even add in a special romance package which includes a dozen roses, a box of premium chocolates and sparkling cider for an additional $50. If you want to splurge a little, opt for the Serenity Suite, with an over-sized jet tub for two, cathedral ceilings and, of course, a delicious home-cooked breakfast.
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.
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]

Visiting several national parks, including Rocky Mountain National Park, is easy or make the most of the abundant outdoor activities, which include hiking, biking, rafting, kayaking, fishing, golf and horseback riding. There are several fascinating museums and over 15 galleries to visit on the First Friday Gallery Walk. Round off the day with a Local Table foodie tour or take in a Canyon Concert Ballet or the Fort Collins Symphony Orchestra. Things to Do in Fort Collins
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.
The capital of Colorado, Denver is a sprawling metropolis that is home to the Denver Art Museum, landmark 19th-century buildings, and the mansion of Titanic survivor Molly Brown. It is also a jumping off point for various ski resorts in the mountains, offering a great variety of activities that range from spending time outdoors amidst nature to exploring the downtown urban scene.
The rooms here are Euro-sexy, with dark, thick, exposed beams and spacious, mirror-lined bathrooms. The spa is one of the best in Vail Valley, with a beautiful indoor-outdoor pool, fresh spa water and tea easily accessible and multiple hot tubs, both inside and out. Sit in the bubbling, warm water with a cup of tea while snowflakes drift around you. 
A geographical anomaly is found along the slopes of the Never Summer Mountains where the Continental Divide forms a horseshoe–shaped bend for about 6 miles (9.7 km), heading from south–to–north but then curving sharply southward and westward out of the park.[5][27] The sharp bend results in streams on the eastern slopes of the range joining the headwaters of the Colorado River that flow south and west, eventually reaching the Pacific.[5][28] Meanwhile, streams on the western slopes join rivers that flow north and then east and south, eventually reaching the Atlantic.[5][28]
In the summer, the Durango & Silverton Narrow Gage Railway is one of the town's main tourist attractions. This historic train runs day trips up the valley from Durango to the old mining town of Silverton, high in the mountains. Durango is also the terminus of the Colorado Trail, a 500-mile-long backcountry trail that runs from Denver to Durango. You can do a day hike or mountain bike along the trail, going out and back the same way. The trail follows the scenic Junction Creek and then climbs up to Gudy's Rest, where many people enjoy lunch and then turn around. In the town of Durango and in the surrounding mountains are numerous hiking and mountain biking trails.
At about 68 million years ago, the Front Range began to rise again due to the Laramide orogeny in the west.[58][59] During the Cenozoic era, block uplift formed the present Rocky Mountains. The geologic composition of Rocky Mountain National Park was also affected by deformation and erosion during that era. The uplift disrupted the older drainage patterns and created the present drainage patterns.[60]
At one time, Niwot was an important hunting and fishing area for American Indians. A railroad extension followed the arrival of Gold Rush miners, and many of the original buildings are part of Old Town in the National Historic District. Located 9 miles from Niwot, the Boulder Reservoir is a popular spot for swimming, boating, and fishing, and there are extensive trails to hike or bike throughout the area. Book your stay at the tranquil Niwot Inn and Spa, or choose a rural escape, like a fully restored 1890s farmhouse where a creekside bike path connects you to the cottonwood-shaded Pearl Street in Boulder. Enjoy a romantic evening at Colterra Food & Wine or the popular Sugarbeet in nearby Longmont.
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]
Nestled below Colorado's radiant mountaintops is beautiful Lazy R Cottages in Estes Park. Just one mile from Rocky Mountain National Park, we offer one-, two- and three-bedroom cabins perfect for romantic escapes and family vacations. Our cabins have kitchens or kitchenettes, fireplaces, decks with mountain views, and some with personal hot tubs … perfect for relaxing after a day enjoying Estes Park and the National Park. Dog-friendly units available ($15 per dog/per night). Free Wi-Fi. View more about our Estes Park cabins.
The Pool is a large turbulent water pocket formed below where Spruce and Fern Creeks join the Big Thompson River. The winter route is along a gravel road, which leads to a trail at the Fern Lake trailhead. Along the route are beaver-cut aspen, frozen waterfalls on the cliffs, and the Arch Rocks.[44] The trail to Alberta Falls runs by Glacier Creek and Glacier Gorge.[44]
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.
It may be summertime but Snowmass has returned to the Ice Age with the Snowmass Ice Age Discovery Center that features the most significant Ice Age ecosystem find in Colorado history (and it’s free). Touch a mastodon tooth, marvel at a half-sized 6-foot Wooden Mammoth Skeleton, do a dig of your own or a daily Ice Age Discovery Hike by  Environment Studies.  Visit the Snowmass Rodeo on Wednesday nights (June 12- August 28) and sign up your kids for the Calf Scramble and Mutton Busting. Ride the Elk Camp Gondola up Snowmass Mountain where the Elk Camp Restaurant will open for activities including downhill biking, dinner, campfires, live music, movies, Stryder Park and Kid’s Playground on Friday evenings. Try your hand at some slopeside bowling at the new bowling alley below Venga Venga Cantina featuring eight full-sized lanes, a lounge area with full bar, wood-fired oven pizzas, upscale bar food and more. Then, get inspired at the Anderson Ranch Arts Center, a stellar place for kids of all ages to take workshops that include sculpture, photography, painting, beading, and mask-making.

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?

Nicknamed the “Mile-High City” because it sits exactly a mile high in altitude above sea level, Denver is Colorado’s capital and largest city. Located just east of the Rocky Mountains, Denver is a popular winter sport destination that celebrates its mining and cowboy history. The city also boasts a lively arts and culture scene with many distinguished museums, such as the Denver Art Museum, and the Denver Performing Arts Complex, one of the nation’s largest performing art centers.
Cow Creek Trail follows Cow Creek, with its many beaver ponds, extending past the Bridal Falls turnoff as the Dark Mountain trail, then joining the Black Canyon trail to intersect the Lawn Lake trail shortly below the lake.[42] North Boundary Trail connects to the Lost Lake trail system. North Fork Trail begins outside of the park in the Comanche Peak Wilderness before reaching the park boundary and ending at Lost Lake. Stormy Peaks Trail connects Colorado State University's Pingree Park campus in the Comanche Peak Wilderness and the North Fork Trail inside the park.[42]
Michigan's apples, cherries, blueberries, and peaches are second-to-none, so make sure to sample those. Another specialty is the coney dog — a hot dog served with mustard, chili, and freshly-cut onions. Also sample the pasties found in the Upper Peninsula, made from potato, onion, meat, and rutabaga. Foodies adore the Cudighi sausage-patty hoagie topped with mozzarella cheese and tomato sauce. With all those Great Lakes, can freshwater fish preparations be far behind? Hot favorites include whitefish and lake perch served with salad and mash potato.
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.

Located just 45 minutes west of Denver, historic Georgetown annually attracts hundreds of visitors who come to experience the history and pioneering spirit of this 1875 mining town. Absorb the atmosphere at museums like the Hamill House Museum, the Georgetown Heritage Center and the Hotel de Paris. Learn all about silver mining as you take a ride to Silver Plume on the historic Georgetown Loop Railway - you can tour the Lebanon Silver Mine en-route.

Brian eventually caught one small trout in the Moraine creek - success! - and many more in the other rivers that flowed through the park, both that afternoon and the next day. We gazed at fellow monoliths from the top of tundra trails, and spooked a red fox along a riverway. All the time, my small knitting project lay safe and secure in my pack, ready to emerge anytime we sat for more than a few moments.
Located south of the town of Avon, Beaver Creek is a family-friendly town that combines the convenience of a modern resort with the quaint charm of an alpine village. The long list of activities available here includes outdoor fun like fly fishing, hiking, wine tasting and panning for gold, in addition to mountain 4×4 tours, rafting, skiing and golf. The town also hosts fun activities like movie nights under the stars, kids activities and various group tours.
Cushion plants have long taproots that extend deep into the rocky soil. Their diminutive size, like clumps of moss, limits the effect of harsh winds. Many flowering plants of the tundra have dense hairs on stems and leaves to provide wind protection or red-colored pigments capable of converting the sun's light rays into heat. Some plants take two or more years to form flower buds, which survive the winter below the surface and then open and produce fruit with seeds in the few weeks of summer. Grasses and sedges are common where tundra soil is well-developed.[73]
“This isn’t a furlough for us,” Oropeza said. “There are definitely folks who, if this continues into next week, they’ll have to forfeit their commitment. Some are exploring applying for other jobs. They have student loans, they have car payments and other bills. …There are ripple effects this is having down the road. Our seasonal contracts, we have to have our contracts for summer seasonal work signed soon. All these things are getting backlogged.”
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.
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.
Idyllically pinned between the crags and currents of Little Prospect Mountain and Big Thompson River, This Mountain Life makes for a serene setting to call basecamp.  Open your windows to clean crisp air, bluebird skies and sights and sounds of a winding snow-fed alpine river. Watch wildlife from Mountain Chickadees to Colorado Chipmunks and Wapiti Elk. Sleep like a log. Step out your haven in Historic Downtown to easily access top Estes Park shops, attractions and venues — from river walks to fishing spots, sweet shops to best restaurants, from care-free strolls to heart-pounding treks.  
Though the Airbnb cabin can accommodate up to 6 people, you can rent it just for the two of you. This vacation rental is located within walking distance to the historic town of Cripple Creek, Colorado. Surrounded by pine and aspen trees, this cabin makes a perfect option for couples who want a romantic getaway. The atmosphere is quiet and peaceful, allowing you to spend quality time together. There is a quite large kitchen for you and partner to prepare romantic dinners. At night, look up to the sky to see the beautiful starry night while holding each other’s hands!
The Experience: Denver is the perfect urban adventure for anyone who likes midsize cities. It's easy to navigate and manage and doesn't feel at all claustrophobic, but offers endless cultural excursions, gourmet dining experiences, and a fun nightlife you'd expect from large cities. Make sure you visit the Denver Art Museum, check out the breweries in the RiNo neighborhood, and stay at the Crawford Hotel, which is in the old Denver Union Station. For a boutique hotel, stay at The Maven Hotel.
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