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]
^ This article incorporates public domain material from the Library of Congress document: "Majestic view from the old, one-way, dirt Fall River Road in Rocky Mountain National Park in the Front Range of the spectacular and high Rockies in north-central Colorado". Library of Congress - Prints & Photographs Online Catalog. Retrieved October 28, 2016.
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.
The Elk are bugling and Fall is coming. What a perfect time to come to Estes Park to see the Elk in their natural surroundings of Rocky Mtn National Park. Within the boundaries of Rocky Mountain National Park, more than 100 peaks rise above 11,000 feet in altitude, including Longs Peak at 14,259 feet. These amazing mountains cradle the Estes Valley, providing residents and guests with incredible beauty and inspiration.
From 9,000 ft (2,700 m) to 11,000 ft (3,400 m),[72] the montane forests give way to subalpine forests.[69] Forests of fir and Engelmann spruce cover the mountainsides in subalpine areas. Trees grow straight and tall in the lower subalpine forests, but become shorter and more deformed the nearer they are to the tree line.[72] At the tree line, seedlings may germinate on the lee side of rocks and grow only as high as the rock provides wind protection, with any further growth being more horizontal than vertical. The low growth of dense trees is called krummholz, which may become well-established and live for several hundred to a thousand years old.[72]
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 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.
Breckenridge is one of the top names in Colorado getaways, but you have to see the quaint downtown surrounded by towering peaks to truly understand what makes this destination so great. Known for its premiere skiing and beautiful hiking—picture rocky trails and alpine lakes—it’s a Colorado weekend getaway that makes you want to get outside and explore. For those who are interested in cozying up while on vacation, a spa package or winery visit could do the trick. 
Not everyone wants a honeymoon on the beach or has the time to make it out to a tropical location. Colorado is an amazing destination for a honeymoon. Imagine dipping into a steaming outdoor hot tub right outside your honeymoon cabin, or spending time cuddling next to a cozy fireplace inside. Here are some inviting and romantic cabins all around Colorado that are perfect for a honeymoon.
Denver is the capital of Colorado and it perfectly reflects the diversity of the state, offering visitors of all ages virtually unlimited attractions to suit all interests. You can visit several art museums, including the Denver Art Museum and the Museum of Contemporary Art Denver, and there are several art districts filled with galleries to thrill and delight all art lovers.
The park's climate is also affected by the Continental Divide, which runs northwest to southeast through the center of the park atop the high peaks. The Continental Divide creates two distinct climate patterns - one typical of the east side near Estes Park and the other associated with the Grand Lake area on the park's west side.[49] The west side of the park experiences more snow, less wind, and clear cold days during the winter months.[49]
If you want to get away from it all and let nature and quiet luxury heal and rejuvenate you, head for the Golden Leaf Inn, a small boutique Bed and Breakfast located on the edge of Rocky Mountain National Park just minutes from the charming Rocky Mountains town of Estes Park. A beautiful 1922 Arts and Crafts building houses five delightful rooms with all the modern luxuries you could imagine.
Just a 5-minute stroll from downtown Estes Park, Fall River Village offers 66 luxury accommodations, including 60 two bedroom and two bathroom condos, a honeymoon suite, four three bedroom and four bathroom townhomes and a four bedroom townhome with panoramic views of the Continental Divide. Property amenities include a heated, outdoor pool, year-round, outdoor hot tubs, a community room, fire pit and grill areas as well as an outdoor recreation area with yard games and a hammock.
There’s no need to travel far from Denver unless you really want to. Boulder is less than an hour’s drive away and is home to the luxurious St. Julien Hotel and Spa. One of the state’s most romantic properties, by booking the St. Julien Suite you’ll enjoy an opulent two-room suite with a balcony, deep soaking tub and plenty of room and relax, unwind and enjoy your time together. You can even order up an in-room couples’ massage. When you do want to venture outside of your room, you’ll find lots to do in town and nearby. Hike the scenic trails that skirt its famous Flatirons Mountains, stroll through legendary open-air mall on Pearl Street, and dine at some fabulous restaurants like The Med, with its Greek Island-themed interior, fine wine and sumptuous Mediterranean small plates.
Zach Zehr, an avid backcountry adventurer, spends a lot of time in Rocky Mountain National Park, which is open but operating with a limited staff since Dec. 22, 2018, due to the federal government shutdown. Because of the shutdown, the roads aren’t being plowed so much of the park is not open to vehicle traffic. Fat bikes, however, work just fine. Zehr, who is also the manager at the Estes Park Mountain Shop, and some friends rode their fat bikes to the Bear Lake Trailhead and did a backcountry ski trip in the park on Jan. 6, 2019. (Provided by Zach Zehr) 
Southwestern ColoradoOur small town atmosphere and endless beauty allows you to feel the true meaning of a vacation. Refresh your spirit in a place away from the crowds. Restore your sense of fun while exploring over three million acres of wilderness and national forest. Reconnect with family and friends. Come to Pagosa Springs and enjoy simplicity on a grand scale.
Home to Colorado’s Vail Ski Resort, Vail is a trendy vacation town located at the base of Vail Mountain and attracts people for its skiing and snowboarding scene, as well as its dining, shopping and arts. It is also a popular summertime destination, offering golfing and hiking opportunities, along with cultural festivals. People also come her to go fly fishing at Gore Creek, which runs through the center of town.
19th-century ghost town, and hosts its own fabulous mineral hot springs. The five-star property enjoys a backdrop of aspens and the dramatic San Juan Mountain Range, situated about 30 miles southwest of Telluride. It’s the perfect place to disconnect from the chaos of the modern world and connect with the one you love. Nearby you can go heli-skiing, rock climbing or hike miles and miles of scenic trails. It hosts a ring of historic log cabins that now serve as luxurious retreats as well as other historic buildings that house a lavish spa, a well-stocked library and a saloon with wagon-wheel chandeliers.
Situated on Vail Square, The Arrabelle sets the standard for luxurious lodging, while its jaw-dropping setting reflects the romantic heritage and ambiance of the European Alps. Here you’ll find architectural touches of Salzburg, Innsbruck and Prague, along with high-end amenities such as personal butler service, ski valet and even grocery delivery. Look forward to heading to the rooftop for laps in the pool and soaking in the whirlpool together while taking in magnificent Rocky Mountain views. You can also relax and unwind together while indulging in treatments at the property’s RockResorts Spa, which offers even more stunning Rockies vistas. Each one of the spacious suites host impressive features like a living room area with a fireplace, ideal for toasting to your new life together while cuddling up next to its warmth.
In winter you can try cross-country skiing and snowmobile trails and after an energetic day out there is nothing better than a soak in one of the natural thermal springs. You can visit the Buena Vista Heritage Museum or go on a Ghost Town adventure, visit several working art studios and galleries, or quench your thirst at a local brewery. Things to Do in Buena Vista
Need to take a break, warm up or find that perfect place to have a picnic? All of Loveland’s on-mountain cabins are equipped with propane BBQ’s. What’s the catch? Nothing, these cabins are free to use. Loveland’s on-mountain cabins are just another reason why skiers and snowboarders love Loveland. Make sure you stop by and check one out on your next visit to Loveland.
Soak in the hotel’s hot tubs after a day of skiing or warm up in front of the crackling fire in the lounge before heading out to enjoy one of the many activities the area has to offer. Enjoy hiking, fishing, mountain biking, skiing, or snowboarding. Wildlife lovers will delight in all the birds and wildlife to be found in the region, and romantics can stargaze on clear nights.
Glacial geology in Rocky Mountain National Park can be seen from the mountain peaks to the valley floors. Ice is a powerful sculptor of this natural environment and large masses of moving ice are the most powerful tools. Telltale marks of giant glaciers can be seen all throughout the park. Streams and glaciations during the Quaternary period cut through the older sediment, creating mesa tops and alluvial plains, and revealing the present Rocky Mountains.[61] The glaciation removed as much as 5,000 feet (1,500 m) of sedimentary rocks from earlier inland sea deposits. This erosion exposed the basement rock of the Ancestral Rockies. Evidence of the uplifting and erosion can be found on the way to Rocky Mountain National Park in the hogbacks of the Front Range foothills.[60] Many sedimentary rocks from the Paleozoic and Mesozoic eras exist in the basins surrounding the park.[62]
The famous hot springs of Glenwood is a must-see and do for all romantics. Located in Glenwood Springs, less than 3 hours from Denver, the historic and local family-owned Hotel Denver spans more than 100 years with many stories to tell, including Colorado immigrants, prohibition, gangsters, world wars, and even a Wild West shooting or two. This Colorado hotel has bragging rights to prime real estate in historic downtown Glenwood Springs, close to the train, many restaurants, shopping, the Hot Springs Pool, and our personal favorite, the Iron Mountain Hot Springs.
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.
