When it comes to epic hiking trails, Colorado might just be the single best state for outdoor adventure. From the towering Rocky Mountains to the pristine alpine lakes, gorgeous fields of wildflowers, and awe-inspiring wildlife, there's simply no shortage of ways to enjoy a Colorado hike. If you're curious about beginner-friendly trails in Colorado or are perhaps a more seasoned hiker looking for a challenge, you'll find a curated list of our favorite trails in the Centennial State below. For helpful hiking tips as well as trail maps and more when exploring the best hikes in Colorado, Try AllTrails+ For Free.

Please note: Many of the below hikes are within Rocky Mountain National Park, which will require a timed entry pass between May and October. To learn more, please be sure to visit the National Park Service website. 

Best Hikes in Colorado

One of the best parts about hiking in Colorado is that you'll quickly discover that there's a trail for every kind of hiker. Whether you're looking for an all-day excursion or a trail suitable for all ages, you'll find plenty of options. The very best hikes in Colorado are so well-loved because they're not only gorgeous, but they offer an unforgettable experience, too.

1. Emerald Lake Trail

• Location: Estes Park
• Mileage: 3.2 miles
• Level of Difficulty: Moderate
• FYI: Emerald Lake Trail is located within Rocky Mountain National Park, which requires a fee for entrance. This is also one of the park's most popular trails, and the parking lot is somewhat limited. If you're not able to arrive early, you might consider taking one of the shuttles to the trailhead.

For a family-friendly trail within Rocky Mountain National Park, it just doesn't get much better than Emerald Lake Trail. The hike is partially paved and takes most hikers about 1 hour and 45 minutes to complete. Along the way, you'll encounter beautiful forested vistas and a jaw-dropping view of the namesake Emerald Lake. You'll want to have your camera ready!

2. Dream Lake Trail

• Location: Estes Park
• Mileage: 2 miles
• Level of Difficulty: Moderate
• FYI: Dream Lake Trail is located within Rocky Mountain National Park, which requires an entrance fee. The trail begins at the Bear Lake Trailhead lot. Parking here is limited, but there is a shuttle available.

It's hard to imagine a more perfectly Colorado hike than Dream Lake Trail. The trail is considered moderately challenging, but it's well-marked and easy to follow. The main attraction is an alpine lake with water so incredibly clear that it's possible to see trout swimming underwater. Visit during the summer months and you can look forward to a spectacular array of blooming wildflowers.

3. Royal Arch Trail

• Location: Boulder
• Mileage: 3.4 miles
• Level of Difficulty: Hard
• FYI: This trail is located just off Baseline Road at the Chautauqua Park Trailhead. Dogs are welcome on this trail but must be kept on leash during most of it.

The Royal Arch Trail is characterized by steep inclines and rocky paths, so you'll definitely want to wear sturdy hiking boots. Those up for the challenge will be well rewarded, though, as this is one of the most beautiful hikes in Colorado! The trail offers an opportunity to admire the Flatirons that are so characteristic of Boulder. At the very end of the trail, hikers will be required to scramble up a few more stairs before reaching the very top, at which point they will glimpse breathtaking views of the city.

Best Short & Easy Hikes in Colorado

If you love the idea of experiencing Colorado's famous vistas but don't love the idea of an all-day strenuous trek, we've got the perfect solution for you. Below we've outlined some of our favorite short and easy hikes in Colorado. Each is jam-packed with gorgeous views and promises to entertain all ages.

4. Alberta Falls

• Location: Estes Park
• Mileage: 1.6 miles
• Level of Difficulty: Easy
• FYI: Alberta Falls Trail can be found within Rocky Mountain National Park, which requires an entrance fee. Dogs are not allowed on this trail.

For a short-and-sweet waterfall trail in Rocky Mountain National Park, Alberta Falls is an excellent option. This popular hike begins at the Glacier Gorge Junction trailhead. Along the way, you'll pass several aspen groves that are positively breathtaking during the fall season. This is a kid-friendly trail, and it's perfect for a family outing. Alberta Fall is such an impressive waterfall that you'll likely hear it before you see it!

5. Bear Lake South Trail

• Location: Estes Park
• Mileage: 0.5 miles
• Level of Difficulty: Easy
• FYI: This trail is located within Rocky Mountain National Park, which requires an entrance fee. Dogs are not allowed on this trail. This trail is considered wheelchair friendly.

Bear Lake South Trail is an incredible introduction to Rocky Mountain National Park if it's your first time visiting. Not only can you enjoy hiking to a gorgeous alpine lake, but you can also allow yourself to adjust to the high altitude. With benches along the way and relatively flat terrain, this is a great option for all ages.

6. Jean Lunning Trail

• Location: Nederland
• Mileage: 2.7 miles
• Level of Difficulty: Easy
• FYI: This trail is located within Brainard Lake Recreation Area, which requires a reservation.

The Jean Lunning Trail is a picture-perfect trek that follows Long Lake. This hike can be enjoyed as an out-and-back trail or as a loop when combined with the Pawnee Pass Trail. This trail will take you through the woods and also showcase some spectacular mountain scenery, all without requiring too strenuous an incline.

Hardest Hikes in Colorado

Many people visit Colorado for the hiking trails alone. You've likely heard of fourteeners, which are mountains that measure at least 14,000 feet in altitude. These are among the hardest hikes in Colorado. If you're planning on taking any of these challenging treks, be sure to pack plenty of water and follow all safety precautions necessary.

7. North Maroon, Maroon, and Pyramid Peak Loop

• Location: Aspen
• Mileage: 19.5 miles
• Level of Difficulty: Hard
• FYI: Maroon Bells and Pyramid Peak are two Colorado fourteeners that are considered very challenging and require technical gear to complete safely. It's best to start this trail as early as possible, as afternoon thunderstorms can roll in quickly and without much warning.

This mountaineering route is one of the most difficult trails in Colorado. Those with experience who are up for an epic challenge will be rewarded with some of the most starkly beautiful views in Colorado. If you're interested in learning more about this trail, we highly recommend checking out the AllTrails overview for details.

8. Harvard Lakes, Mount Columbia, Mount Harvard

• Location: Buena Vista
• Mileage: 14.6 miles
• Level of Difficulty: Hard
• FYI: This route is only for the most experienced mountaineers. There's no official trail between Harvard and Columbia, meaning you will need to follow cairns and navigate safely.

Plan to research this difficult trek well in advance so you are as prepared as possible! This challenging and beautiful route will showcase absolutely spectacular scenery along the way. It's a loop trail with an elevation gain of 5,700 feet. Keep in mind that even in June, the trail can be covered in snow.

9. Missouri, Belford and Oxford Mountains

Location: Granite Mileage: 16.4 Level of Difficulty: Hard FYI: This trail is located within the Collegiate Peaks Wilderness. Dogs must be kept on a leash at all times. Camping needs to be at least 100 feet from the water.

For those interested in experiencing 3 fourteeners in one loop, the Missouri, Belford, and Oxford Mountains trail won't disappoint. But, as you can imagine, this one isn't for the faint of heart either! Reviewers have noted that this is one of the most beautiful yet most difficult hikes you can take in Colorado. Preparation is key!

Best Waterfront Hikes in Colorado

Colorado is home to stunning alpine lakes and rushing rivers. Below you'll find some of the very best waterfront hikes in Colorado. Trust us when we say the scenery will not disappoint!

10. Sky Pond via Glacier Gorge Trail

• Location: Estes Park
• Mileage: 8.6
• Level of Difficulty: Hard
• FYI: This trail is located within Rocky Mountain National Park, which requires an entrance fee. Dogs are not allowed on this trail.

The picture-perfect hike to Sky Pond offers some of the most striking views in all of Rocky Mountain National Park. Following Glacier Gorge Trail, you'll pass by plenty of noteworthy stops: Alberta Falls, The Loch, Lake of Glass, Timberline Falls, and Lake of Glass. After reaching this last lake, you'll find yourself at the lovely Sky Pond.

Best Winter Hikes in Colorado

While summer is undoubtedly the most popular time of year for hiking in Colorado, winter hiking can be equally as magical. Of course, most winter hikes in Colorado require snowshoes or cross-country skis. Nevertheless, getting out into the beautiful outdoors during a clear winter day is one of the most rewarding Colorado experiences you can have! Take a look at the following list of best winter hikes in Colorado and see if you aren't inspired to bundle up and explore.

11. Brainard Lake from Gateway Trailhead

• Location: Ward
• Mileage: 5.7 miles
• Level of Difficulty: Moderate
• FYI: For off-season hiking, you'll likely have to park at the Gateway Trailhead as the gate to the Brainard Lake Recreation Area is closed in the winter.

For a fun winter adventure, you'll want to add Brainard Lake to your outdoor bucket list. This high-altitude lake gets a lot of snow, so if you're visiting any time other than the middle of summer, you'll likely need snowshoes.

12. CMC South Trail and Little Raven Trail

• Location: Ward
• Mileage: 5.5 miles
• Level of Difficulty: Moderate
• FYI: This trail is located within the Brainard Lake Recreation Area. Between mid-October and mid-June, the road to this trailhead is not open to vehicles.

The CMC South Trail and Little Raven Trail is another great winter hike located within the Brainard Lake Recreation Area. This is also a great trail to test out your cross-country skiing skills. With plenty of packed snow and amazing views, you're bound to have an unforgettable winter adventure.

13. Hidden Valley

• Location: Estes Park
• Mileage: 2.2 miles
• Level of Difficulty: Hard
• FYI: Hidden Valley is located within Rocky Mountain National Park, which requires an entrance fee.

Between 1955 and 1991, Hidden Valley once operated as a ski area. During the summer, hikers enjoy exploring these old slopes. In the winter, it's especially popular among backcountry skiers, split borders, and snowshoers. The area below Trail Ridge Road is better suited for beginners and intermediates, while the slopes above are more intense.

Best Hikes Near Denver

Have you ever wondered, "What are the best hikes near Denver?" We've got several answers for you! If you live in Denver, you don't have to travel far to enjoy some truly epic Colorado hikes. We've listed some of our favorites below.

14. Green Mountain via Green Mountain and Hayden Trail Loop

• Location: Lakewood
• Mileage: 4.6 miles
• Level of Difficulty: Moderate
• FYI: Green Mountain Trail can be closed seasonally, so be sure to check the Lakewood Parks website for the most up-to-date information. Please note that this is a very popular trail among mountain bikers, so you'll likely be sharing the trail.

This peaceful hike offers the chance to immerse yourself in gorgeous open space just outside of Denver. The gentle incline means it's a doable trail for most skill levels. There's not much shade, so be sure to wear proper sun protection!

15. Washington Park Loop

• Location: Denver
• Mileage: 2.3 miles
• Level of Difficulty: Easy
• FYI: This lovely park features paved, gravel, and natural dirt paths. It's a wheelchair and stroller-friendly place to enjoy. This is a very popular place for biking and rollerblading as well.

Washington Park offers a gorgeous place to enjoy nature and fresh air in Denver. Whether you're running, rollerblading, or perhaps just taking a leisurely stroll around the lake, you'll quickly fall in love with this urban oasis. At just over two miles, the Washington Park Loop is a quick and easy adventure.

Do you agree that these are some of the very best hikes in Colorado? Are there any that you would add to the list? Be sure to share them with us in the comments below -- we would love to hear from you!