Explore activities in Colorado from hiking and trail running to skiing, wildlife viewing and more.Activities
Rocky Mountain National Park has 355 miles of hiking trails. They range from flat lakeside strolls to steep mountain peak climbs.Hike Rocky Mountain National Park
Explore Road Trip options around ColoradoRoad Trips
Discover great places to view wildlife, enjoy the Fall colors of Colorado or where the wildflowers burst to life.Geology
Discover great places to view wildlife, enjoy the Fall colors of Colorado or where the wildflowers burst to life.Nature & Wildlife
Discover great places to view wildlife, enjoy the Fall colors of Colorado or where the wildflowers burst to life.Hiking
Discover great destinations of Colorado to explore and enjoy your epic adventure.Colorado Destinations
Colorado has 58 mountain peaks exceeding 14,000 feet (known as "fourteeners" or "14ers" locally) — the most of any state. Outdoor enthusiasts of all skill levels will find peaks ranging from easy to very difficult, with hiking trails for exploring the state's scenery, wildlife and rugged beauty.
Some of the Colorado's best-known fourteeners include the tallest, Mount Elbert; Pikes Peak, which inspired the poem "America the Beautiful"; and Longs Peak, which resides inside Rocky Mountain National Park. See a full list of 14ers and their elevations and an awesome infographic that describes what makes them so special to Coloradans.
The reward for reaching the summit of one of these 14ers? Some of the most breathtaking views you'll find anywhere on the planet, as well as stargazing opportunities. But it's important to know a few things before you head out to these massive Colorado fourteeners.
There is a debate about exactly how many 14ers there are in Colorado. The Colorado Geological Survey says there are 58 peaks that exceed 14,000 feet in elevation. Others use this logic: To qualify, a peak must rise at least 300 feet above the saddle that connects it to the nearest 14er peak (if another exists nearby). You can make up your own mind!
If you're looking for a bit more solitude, we recommend detouring from the very popular 14ers to a few of 580-plus 13ers in Colorado, which pack just as much adventure punch in slightly less elevation.
While climbing up a fourteener can lead you to breathtaking views, the thinner air can lead to altitude sickness. Altitude sickness is brought on by a lack of oxygen to your body and a failure to acclimate to air that has less oxygen. It can be caused by going too high, too fast.
The problem is, everyone's body has a different rate of acclimating, so it's important to be aware of any changes you feel. The most widely felt symptom is a headache, but other symptoms include shortness of breath, tightness in the chest, marked fatigue and weakness. If you experience any of these, just follow the simple guidelines below and let others know you're not feeling 100 percent. Symptoms often improve once your body adapts to the higher elevation, but you need to be patient — and most importantly, keep hydrated and take it easy.
Colorado has the great fortune of having these 58 majestic fourteeners right in our backyard. But every year, an increasing number of hikers and climbers attempt to ascend one of these peaks, impacting the alpine environment. It is up to those who love these mountains to minimize damage to their fragile ecosystems. The Leave No Trace (LNT) program is dedicated to building awareness, appreciation, and most of all, respect for our public recreation places. It is not based on rules and regulations as much as attitude and awareness.
Please be sure to follow the Leave No Trace principles so that future generations can continue to enjoy Colorado's breathtaking mountains: