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.
Join us on a magnificent day tour of the Rocky Mountain National Park from Denver. See the continental divide, the most prominent hydrological division and the world’s largest mountain barrier. On this day trip from Denver, we will take you to the “top of the world” in the park, filled with spectacular vistas. Experience the great outdoors and nature by walking along beautiful trails and watching the wildlife in its natural habitat. The Rocky Mountain National Park is considered to be one of the most majestic and breathtaking sights to behold in our country. On this Sightseeing tour, you be witness to once in a lifetime wildlife sightings, soaring mountain peaks, and come to understand the true meaning of “Purple Mountain Majesties”. Winter (November - May): In this mountain tour, we will explore the quaint and peaceful Bear Lake. Stop at Estes Park (lunch stop), Gateway visitor center, Moraine Park, Stanley Hotel (photo opportunity) and moreSummer (June - October): we will explore Trail Ridge Road, stop at the Alpine Visitors Center, which features extraordinary views of alpine tundra and full river cirque. Stop at Estes Park, Many Parks curve, Rainbow curve, Stanley Hotel (photo opportunity) and more. You’ll also have the chance to take in some local history about our beautiful state, and grab a snack and souvenir. This park is full of more wildlife and breathtaking views than most people see in an entire lifetime. Note: tour may be modified due to the weather and road closures.
Unless you’re really into skiing or boarding, you probably haven’t considered a honeymoon in Colorado among your destinations, but you really should. While it is outstanding for those who like to glide down snowy slopes, the Rocky Mountain State offers a whole lot more for honeymooning couples. Not only is there over 300 days of sunshine a year to enjoy its dramatic mountain peaks, but it offers everything from hot springs, vineyards and countless microbreweries to a wide range of other outdoor adventures, like hiking, mountain biking, whitewater rafting and more. It also happens to be home to many fabulous resorts that are ideal for romance, including these.
The park was designated a World Biosphere Reserve by the United Nations in 1976 to protect its natural resources.[67][68] The park's biodiversity includes afforestation and reforestation, ecology, inland bodies of water, and mammals, while its ecosystems are managed for nature conservation, environmental education and public recreation purposes.[67] The areas of research and monitoring include ungulate ecology and management, high-altitude revegetation, global change, acid precipitation effects, and aquatic ecology and management.[67]
Pagosa Springs is a picturesque, off-the-beaten-path destination surrounded by the San Juan National Forest. It’s an ideal spot for a Colorado weekend trip, with beautiful hiking paths, numerous hot springs, and stunning spots like Chimney Rock National Monument and Treasure Falls. Or going off-roading for another fun way to make the most of this charming town’s personality and views. 
No matter what time of year you choose to stay in Estes Park, you will find pleasant weather to suit the outdoor activities of the season. The coldest month is January, with an average high of 38 degrees – excellent skiing and snowboarding weather. July tends to be the warmest month of the year, with average highs reaching 78 degrees. This warmth, combined with the region's low humidity, makes for the perfect climate for hiking, biking, boating, and more.
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]
The park has a total of five visitor centers[9] with park headquarters located at the Beaver Meadows Visitor Center—a National Historic Landmark designed by the Frank Lloyd Wright School of Architecture at Taliesin West.[10] National Forest lands surround the park including Roosevelt National Forest to the north and east, Routt National Forest to the north and west, and Arapaho National Forest to the west and south, with the Indian Peaks Wilderness area located directly south of the park.[5]
Become immersed in Rocky’s pristine landscape on some of the park’s 355 miles of hiking trails. Choose from flat lakeside walks to steeper, more challenging mountain climbs. The easy .6-mile Bear Lake trail is a popular hike featuring an interpretive nature trail hugging a subalpine lake at the end of Bear Lake Road. For a stunning waterfall hike, make your way to Alberta Falls or Ouzel Falls.
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 Mummy Range is a short mountain range in the north of the park. The Mummies tend to be gentler and more forested than the other peaks in the park, though some slopes are rugged and heavily glaciated, particularly around Ypsilon Mountain and Mummy Mountain. Bridal Veil Falls is a scenic point and trail accessible from the Cow Creek trailhead, at the Continental Divide Research Center.[41] West Creek Falls and Chasm Falls, near Old Fall River Road, are also in this region. The Alluvial Fan trail leads to a bridge over the river that had been the site of the Lawn Lake Flood.[42]
Lawn Lake Trail climbs to Lawn Lake and Crystal Lake, one of the parks deepest lakes, in the alpine ecosystem and along the course of the Roaring River. The river shows the massive damage caused by a dam failure in 1982 that claimed the lives of three campers. The trail is a strenuous snowshoe hike in the winter.[42] Ypsilon Lake Trail leads to its namesake as well as Chipmunk Lake, with views of Longs Peak, while traversing pine forests with grouseberry and bearberry bushes. The trail also offers views of the canyon gouged out by rampaging water that broke loose from Lawn Lake Dam in 1982. Visible is the south face of Ypsilon Mountain, with its Y shaped gash rising sharply from the shoreline.[42]
The Snow Queen Lodge is a Victorian jewel built during Aspen's Wild West Silver Boom that was later converted to a family-run cozy bed and breakfast. It has nine charming rooms with private baths and tasteful Victorian details and a spacious loft at a different location. The lodge is located in downtown Aspen at the base of Aspen Mountain, walking distance from the gondola, world class skiing, and the free shuttles that will take you to other mountains such as Snowmass, Highlands, or Buttermilk.
The Rockies are unbelievable. We explored the Niwot Ridge tundra plateau, speckled with wildflowers of every shape and color, looked down on the layered blue mountain ranges below, while snow-tipped peaks gazed at us from still-greater heights. I felt the elevation only in the difficulty breathing I experienced when walking from Point A to Point B - but we walked for more than three miles. Otherwise, it was the height itself that pulsed through my veins, truly on top of the world. 
Brian and I descended back to ~7,000 feet for dinner in a small-town Indian restaurant in Nederland, Colorado, west of Boulder. By then, both our heads ached like a bad hangover, and my lungs literally burned when I tried to inhale anything but shallow breaths. Add generalized joint pain, and I had a full-blown case of altitude sickness. Given that I am a noted hypochondriac, I expected the worst.
