Rocky Mountain National Park - http://www.nps.gov/romo
Established on January 26, 1915, Rocky Mountain National Park is a living showcase of the grandeur of the Rocky Mountains. With elevations ranging from 8,000 feet in the wet, grassy valleys to 14,259 feet at the weather-ravaged top of Longs Peak, a visitor to the park has opportunities for countless breathtaking experiences and adventures.
Front-country and backcountry campers have hundreds of campsites to choose from. Civilization and its amenities are available in the towns of Estes Park and Grand Lake which flank the park on the east and west sides respectively. Ranger-led activities are an entertaining way to learn more about your surroundings. Plan some time to acclimate to the high altitude and come find your adventure in Rocky Mountain National Park.