Lumpy Ridge Trail leads to Paul Bunyan's Boot at about 1.5 mi (2.4 km) from the trailhead, then Gem Lake, and a further 2.2 mi (3.5 km) to Balanced Rock.[43] Black Canyon Trail intersects Cow Creek Trail, forming part of the Gem Lake loop which goes through the old McGregor Ranch valley, passing Lumpy Ridge rock formations, with a loop hike that goes into the McGraw Ranch valley.[42]
If you make the quick jaunt to Denver’s neighbor-to-the-north, start with the Fort Collins Museum of Discovery.  Debuting in November 2012, the museum features over interactive 100 exhibits and activities such as the Music & Sound Lab, where physics, technology, history and hands-on playing and composing lead to inspiration.  The Environmental Learning Center is a 212-acre site comprised of four distinct ecosystems – wetlands, riparian, cottonwood forest and prairie – and offers plenty of programs for kids. The Rocky Mountain Raptor Program takes in injured birds of prey, and welcomes visitors interested in their rehabilitation and release. Want a free ride? The Fort Collins Bike Library loans bicycles to visitors and residents, from one hour to seven days, at no charge.
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]
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]

Castle Mountain Lodge got its start in the late 1950s and became the first new cottage to be built and rented annually. Soon after the first building was built, five more cottages were constructed. Today, the dog-friendly lodgings feature one-bedroom, two-bedroom and three-bedroom options and include access to the public hot tub, rooms with private, indoor hot tubs and rooms with private, outdoor hot tubs. Get all the details and make your reservation online here.
Rocky Mountain National Park is an American national park located approximately 76 mi (122 km) northwest of Denver International Airport[4] in north-central Colorado, within the Front Range of the Rocky Mountains. The park is situated between the towns of Estes Park to the east and Grand Lake to the west. The eastern and westerns slopes of the Continental Divide run directly through the center of the park with the headwaters of the Colorado River located in the park's northwestern region.[5] The main features of the park include mountains, alpine lakes and a wide variety of wildlife within various climates and environments, from wooded forests to mountain tundra.
Vail doesn't always fit with everyone's budget, particularly if you want to spend a night during the high season. In the vicinity are a number of small towns and villages that are less well known but more affordable and also worth a visit. Although not a ski resort, Frisco is a charming mountain town and one of the best places to visit in the area. This is a nice base if you are exploring the I-70 Corridor around Vail and Beaver Creek. The town has all kinds of quirky cafés, shops, and restaurants, and a true mountain vibe. Just up the way from here is the small town and ski resort of Breckenridge, at an altitude of 9,600 feet.

About 300 million years ago, the land was uplifted creating the ancestral Rocky Mountains.[55] Fountain Formation was deposited during the Pennsylvanian period of the Paleozoic era, 290–296 million years ago. Over the next 150 million years, the mountains uplifted, continued to erode, and covered themselves in their own sediment. Wind, gravity, rainwater, snow, and glacial ice eroded the granite mountains over geologic time scales.[56] The Ancestral Rockies were eventually buried under subsequent strata.[57]
Mesa Verde was home to the Ancestral Pueblo who inhabited the dwellings from approximately 600 AD to 1300 AD. Thousands of archeological sites lie within the park, although the cliff dwellings are the most spectacular. A road allows access to numerous sites, many of which are on top of the mesa. A number of hiking trails, which do not require a ranger tour, lead to lookouts and interesting sites, including petroglyphs.

A classic Colorado city just up the road from Denver, Fort Collins is a great spot for a weekend trip in Colorado. The historic college town is artsy and vibrant with plenty to do. Whether it’s bringing the kids to the Museum of Discovery, hiking and kayaking at Horsetooth Open Space, perusing Old Town shops, or biking to Fort Collins’ many craft breweries, there’s something for everyone.
A small city that packs a lot of punch for its size, Vail is one of the most beloved ski destinations in the country, where its not uncommon to spot a celebrity or two. Nestled between the Gore Mountain Range and Sawatch Mountain Range, this narrow alley is home to the largest single-mountain resort in the United States. While most visitors come to Vail for its famous 5,289 acres of ski slopes, in the summer visitors can also explore the Eagles Nest Wilderness Area and Holy Cross Wilderness area to hike the area’s rugged mountainside trails.
Bear Lake is a high-elevation lake in a spruce and fir forest at the base of Hallett Peak and Flattop Mountain.[44] Bierstadt Lake sits atop a lateral moraine named Bierstadt Moraine, and drains into Mill Creek. There are several trails that lead to Bierstadt Lake through groves of aspens and lodgepole pines.[45] North of Bierstadt Moraine is Hollowell Park, a large and marshy meadow along Mill Creek. The Hollowell Park trail runs along Steep Mountain's south side. Ranches, lumber and sawmill enterprises operated in Hollowell Park into the early 1900s.[45]
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)
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.
^ Montana State University states in their profile of Rocky Mountain National Park that there has been an increase of 2.5 °F (1.4 °C) in the average park temperature over "the past century" (charts show the period from about 1895-2010).[48] The National Park Service site states that the increase has been 3.4 °F (1.9 °C) over "the last century" (chart shows the period from about 1905-2010).[52]
Above tree line, at approximately 11,000 ft (3,400 m), trees disappear and the vast alpine tundra takes over.[69] Over one third of the park resides above the tree line, an area which limits plant growth due to the cold climate and strong winds. The few plants that can survive under such extreme conditions are mostly perennials. Many alpine plants are dwarfed at high elevations, though their occasional blossoms may be full-sized.[73]
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