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. 
Apart from elk, many other ungulates reside in the park, including bighorn sheep, moose, and mule deer. Bison were eliminated from the park in the 1800s, as were pronghorn and moose, the latter of which was restored to the area in 1978. Moose are now frequently seen in the park, especially on the park's west side.[77] The park's bighorn sheep population has recovered and is estimated at 350 animals.[78]
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.
Every summer, Aspen gets taken over by classic music lovers during the renowned Aspen Music Festival and School with more than 300 concerts. Learn about Aspen from Dean Weiler during one of his popular Aspen Walking Tours and pay respect to John Denver at the John Denver Sanctuary you will pass by while hiking the picturesque Rio Grande Trail. Next read: best Aspen restaurants.
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
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.
Adventure Ridge is the big news at Vail and mid-summer, the resort will implement several new activities, including a four-line 1,200-foot long zip line, two aerial ropes courses, and a kids zip line as well as a kids ropes course, climbing wall, rebound trampoline. Gore Creek Mini Golf offers family-friendly putting atop the Lionshead base area for the second summer season. Grab your family and try the  FREE bean bag toss, horseshoes or the new slackline park where kids of all ages can test their balance at a variety of levels. If your kids are age four and older, they can use digging tools and a map to uncover dinosaur bones and learn about prehistoric creatures. The FREE Bud Light Hot Summer Nights Concert Series on Tuesdays June 12-August 21 has become the social event of the season. If you have aspiring adventurers, the 4th annual KEEN Vail Kids Adventure Race on August 10 and 11 lets kids ages 6 through 14 experience the thrill of adventure racing with mountain biking, hiking, tubing, archery, a low ropes course, a zip line, a climbing wall, a Tarzan swing, a giant slip-n-slide and more.
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.
When taking in the amazing views at Rocky Mountain National Park, don’t forget to look down! Summer is a great time to see wildflowers at the park, which is home to hundreds of different flower species. Wander through colorful mountain meadows and alpine wildflower hotspots like this beautiful rainbow bouquet at Upper Ouzel Creek. Crystal Brindle, National Park Service

The Experience: If Aspen isn't quite your mountain town scene, head to Vail instead. It's equally as idyllic (it was modeled after European mountain resorts), pedestrian-friendly, and lovely, but the town itself is more of a square in a village with a small collection of boutiques and restaurants for visitors. Ride up and down the gondolas for mountain views in every direction and ski the unique back bowls. It's also closer to Denver, making it easier to get to and, therefore, a little more crowded during peak seasons.
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 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. 
Dunton Hot Springs is a luxury hideaway with authentic nineteenth century hand-hewn log cabins and a bath house with natural hot springs in Colorado. Dunton attracts outdoor adventure enthusiasts as well as guests who are looking for a quiet place to relax in natural surroundings. The cabins are located in the San Juan Range of the Colorado Rockies 8,700 feet above sea levels. Guests have access to a two story library and an open-air wedding chapel. Visitors can keep in touch with the outside world through high speed wireless internet access and video conferencing.
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.
Dinosaur National Monument, in northwest Colorado, combines dramatic scenery with natural and cultural history to create one of Colorado's most interesting sites. Dinosaur remains embedded in exposed rock walls reveal evidence of the giants that once roamed these areas. Petroglyphs offer insight into the cultures and people that lived here long ago, and surrounding it all are cliff walls and the Green and Yampa Rivers snaking through the otherwise dry landscape.
A gorgeous mountain town that is not as well-known as its counterparts, Salida offers a variety of historic attractions to fill up a weekend itinerary. Take the Monarch Scenic Tram to soak in stunning Rocky Mountain views, go for a dip in the Salida Hot Springs or explore the area’s local history and culture at the nearby Salida Museum. When the weather warms up, grab a kayak or tube and head to the Arkansas River, and active travelers can utilize one of the many scenic mountain bike trails to explore the region further. A certified Colorado Creative District, visitors can also browse the area’s abundance of impressive art studios and galleries.
The montane ecosystem is at the lowest elevations in the park, between 5,600 to 9,500 feet (1,700 to 2,900 m), where the slopes and large meadow valleys support the widest range of plant and animal life,[69][70] including montane forests, grasslands, and shrublands. The area has meandering rivers[70] and during the summer, wildflowers grow in the open meadows. Ponderosa pine trees, grass, shrubs and herbs live on dry, south-facing slopes. North-facing slopes retain moisture better than those that face south. The soil better supports dense populations of trees, like Douglas fir, lodgepole pine, and ponderosa pine. There are also occasional Engelmann spruce and blue spruce trees. Quaking aspens thrive in high-moisture montane soils. Other water-loving small trees like willows, grey alder, and water birch may be found along streams or lakeshores. Water-logged soil in flat montane valleys may be unable to support growth of evergreen forests.[70] The following areas are part of the montane ecosystem: Moraine Park, Horseshoe Park, Kawuneeche Valley, and Upper Beaver Meadows.[70]

Would you like to stay in a historic red barn, a former milk room, or an original historic log cabin and get an idea of how the original Colorado settlers lived? Converted to the luxury Four Mile Creek Bed and Breakfast, this former 1885 homestead is a quaint reminder of the area’s adventurous past. With its main lodge building, old converted barn, and two log cabins, the Bed and Breakfast today offers rustic luxury and unparalleled comfort. The rooms are furnished with antique pieces and fireplaces, with luxurious bathrooms featuring claw foot tubs, conveying a sense of times gone by while providing entirely modern comfort and amenities.
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