Thanks to a wide variety of things to do and places to see, Boulder is arguably one of the best weekend getaways in Colorado—if not the whole Western United States! This college town (home to University of Colorado Boulder) has it all: hike the Flatirons or Chautauqua Park in the morning, tour the Celestial Seasonings Tea Factory and Leanin’ Tree gallery in the afternoon, and then head to Pearl Street for shopping, drinking, and dining at night—and get around on the Boulder Creek Path in between. A Boulder bike tour helps you fit in even more sightseeing, perfect for a quick itinerary.
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.
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Although Aspen is best known as a winter sports destination, this lovely little town in the heart of the White River National Forest is a brilliant year-round destination for active adventurers, festival lovers and arts aficionados. Besides downhill skiing, you can try cross-country skiing, snowshoeing, snowmobiling, ice skating and dog sledding, before rounding off your day with Après-Ski cocktails, local craft beers or a delicious meal.

At 265,000 acres, Rocky Mountain National Park isn't the country's largest national park, nor is it the most-frequented with about 4 million annual visitors (compared to Great Smoky Mountains National Park's more than 11 million visitors). But there is something definitively magical about RMNP, which rises 12,183 feet into the Colorado sky. The main attraction is hiking its 350-some miles of trails that wind through pine and spruce forests, glittering alpine lakes, swaths of wildflowers and if you're lucky, some elk or bighorn sheep. And maybe it's the thinner atmosphere that goes to visitors' heads, but even the most jaded report feelings of awe and wonder after a day or two of breathing in that refreshing mountain air. 
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.
Loveland is called so for a reason. Romantic getaways in Colorado are blessed with vast views of Big Thompson Canyon and its inhabitants – sheep, deer, and the odd eagle. Don't miss out on Loveland Brewery, which is a bastion of Colorado's brew culture. Meanwhile, Telluride is overlooked by sky piercing peaks and retains a sense of seclusion from the outside world, making it ideal for weekend getaways in Colorado for couples. Mountain Village presents visitors with a horde of glittering attractions, while a charming "free box" is still used to exchange items.

Explore the nearby great outdoors at the Horsetooth Mountain Open Space or get your adrenaline pumping by rafting on Cache La Poudre River with the Mountain Whitewater Descents Company. Visit Global Village Museum of Arts and Cultures to learn about folk art from all over the world. Take the kids to the Farm at Lee Martinez Park to learn about the farm life and play with baby farm animals.
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