The best walks and hikes in Colonel Denning State Park
4.5
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44
hikers
6
hikes
Hiking in Colonel Denning State Park offers access to 273 acres of woodland and serves as a gateway to the larger Tuscarora State Forest. The park is situated in Doubling Gap, a distinctive geological feature where Blue Mountain doubles back on itself, providing varied terrain for exploration. At its heart lies the tranquil Doubling Gap Lake, while trails extend through diverse habitats including wetlands and rugged mountain paths.
Best hiking trails in Colonel Denning State Park
- The most popular hiking route is Flat Rock Trail, a 2.5 miles (4.1 km) moderate trail that takes 1 hour 28 minutes to complete. This path leads to Flat Rock, offering panoramic views of the Cumberland Valley.
- Another top favourite among local hikers is Doubling Gap Nature Trail, an easy 1.9 miles (3.0 km) path. This self-guided trail features informational panels and is known for wildflowers in its wetlands during spring.
- Local hikers also love the Flat Rock Loop Trail, a 4.5 miles (7.3 km) moderate trail leading through varied woodland and mountain terrain, often completed in about 2 hours 31 minutes.
- Hiking in Colonel Denning State Park is defined by dense woodlands, the unique Doubling Gap formation, and the serene Doubling Gap Lake. The network offers options for different ability levels, from easy nature walks to more challenging mountain ascents.
- The routes in Colonel Denning State Park are highly rated by the komoot community with an average score of 4.5 stars from 3 reviews. More than 40 hikers have used komoot to explore Colonel Denning State Park's varied terrain.
Last updated: May 12, 2026
2
hikers
4.11km
01:28
360m
50m
Embark on the Flat Rock Trail for a moderate hiking experience that takes you through a lush forest. This 2.6-mile (4.1 km) route involves a continuous uphill climb, gaining 1182 feet (360 metres) in elevation. You will navigate rugged and rocky terrain, with sections of loose gravel and arranged stones underfoot. The journey culminates at the incredible Flat Rock Vista, a natural rock outcrop offering panoramic views of the Cumberland Valley. Plan for about 1 hour and 27 minutes to complete this challenging ascent.
Before you set out, make sure you wear proper hiking shoes, as the trail is known for its rugged and rocky sections with roots. Be prepared for a steady uphill climb throughout, particularly the final stretch to the viewpoint, which can be steep enough to require using your hands for balance. This is an out-and-back route, meaning you will return along the same path. Consider starting early to enjoy the vista without crowds.
As you ascend, you will pass through a lush forest before reaching a windy boardwalk that crosses a swampy area near the top of Blue Mountain. The Flat Rock Vista is a prime spot for wildlife viewing; you might even catch sight of large flocks of buzzards soaring above the Cumberland Valley. This trail offers a rewarding challenge within Colonel Denning State Park, providing expansive views that make the effort worthwhile.
2
hikers
3.02km
00:47
20m
20m
Enjoy an easy hike on the Doubling Gap Nature Trail, a pleasant loop winding through a mixed hardwood forest. The path offers picturesque views of Doubling Gap Lake and follows a mountain stream, leading you through wetland areas. This gentle route covers 1.9 miles (3.0 km) with a minimal elevation gain of 70 feet (21 metres). You can complete this hike in about 47 minutes, making it a great option for a quick nature immersion.
This trail is open year-round, welcoming you to explore its natural beauty in any season. You will find the trailhead conveniently located at Doubling Gap Lake, which also marks the end of your journey. While leashed dogs are welcome to join you, be aware that conditions can become muddy after rain, so plan your footwear accordingly. There are no permits or fees required for this accessible outdoor experience.
As you hike, you will discover interpretive panels placed along the route, explaining the local geology, wildlife, and plant life. This makes the Doubling Gap Nature Trail an excellent choice for nature study and learning about the Blue Mountain foothills. Keep an eye out for wildflowers blooming in the spring, adding vibrant color to the forest floor.
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5.69km
02:02
430m
160m
Hike the moderate 3.5-mile Flat Rock Loop Trail in Colonel Denning State Park, gaining 1419 feet in about 2 hours.
4.0
(1)
10
hikers
7.30km
02:31
390m
390m
Hike the moderate 4.5-mile Flat Rock Loop Trail in Colonel Denning State Park, featuring steep and rocky sections with 1285 feet of elevatio
5.0
(2)
28
hikers
7.06km
02:27
390m
390m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.
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Tips from the Community
Colonel Denning State Park spans 273 acres in Pennsylvania’s Cumberland Valley, and is a peaceful spot anchored by the 3.5-acre Doubling Gap Lake. The park includes a 49-site campground with potable water, picnic tables, fire rings, electric hookups, and restrooms with warm showers—open seasonally from spring through late fall. It is a vital hub for hikers exploring theTuscarora Trail, with direct access to additional loops like the Flat Rock Trail and Doubling Gap Nature Trail. The park is a gateway to the Tuscarora State Forest, making it easy to transition into longer hikes to explore more of this beautiful area.
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The Flat Rock Trail is a popular trail that takes you up to a viewpoint at Flat Rock. The trail is challenging as there is a lot of elevation gain, but it is worth the effort for the views at the top.
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Frequently Asked Questions
How many hiking trails are available in Colonel Denning State Park?
Colonel Denning State Park offers a variety of hiking experiences with 6 distinct trails listed on komoot. These range from easy strolls to more challenging ascents, providing options for different fitness levels. You'll find 1 easy trail and 5 moderate trails to explore within the park.
Are there any family-friendly hiking trails in Colonel Denning State Park?
Yes, for families or those seeking a gentler walk, the Doubling Gap Nature Trail is an excellent choice. This easy, self-guided one-mile loop around Doubling Gap Lake features informational panels about the area's natural history and is known for beautiful wildflowers in spring. It's a great way to enjoy nature without a strenuous climb.
Which trails offer the best views in Colonel Denning State Park?
For breathtaking panoramic views, the Flat Rock Trail is highly recommended. This trail leads to Flat Rock, a natural rock outcrop at the top of Blue Mountain, offering a stunning 180-degree vista of the Cumberland Valley. It's particularly spectacular during fall foliage and hawk migration season.
Are dogs allowed on the hiking trails in Colonel Denning State Park?
Yes, pets are permitted in designated day-use areas and on designated trails within Colonel Denning State Park. Always ensure your dog is on a leash and that you clean up after them to help keep the park enjoyable for everyone. For specific regulations, you can check the official PA DCNR website.
What is the best time of year to go hiking in Colonel Denning State Park?
Colonel Denning State Park offers enjoyable hiking throughout the year, but spring and fall are particularly popular. In spring, the wetlands along Doubling Gap Lake burst with wildflowers. Fall provides spectacular foliage views, especially from Flat Rock, and is ideal for hawk migration observation. Summer is great for combining hikes with swimming or boating, while winter offers opportunities for cross-country skiing and ice skating when conditions permit.
Are there any loop trails available for hiking in the park?
Yes, Colonel Denning State Park features several loop options. A popular choice is the Flat Rock Loop Trail, which combines the scenic Flat Rock ascent with a return route, offering a comprehensive hiking experience with rewarding views. Another variation of this loop is also available, providing a slightly longer option.
What are the most challenging hikes in Colonel Denning State Park?
The most challenging hikes in the park typically involve the ascent to Flat Rock. Trails like the Flat Rock Trail and its various loop extensions are considered moderate due to their significant elevation gain (up to 432 meters) and rocky terrain. These trails require good physical condition and appropriate footwear.
Is parking available at Colonel Denning State Park?
Yes, Colonel Denning State Park provides ample parking facilities for visitors. The main parking areas are conveniently located near the Doubling Gap Lake and trailheads, making it easy to access the various hiking routes and recreational amenities within the park.
What can I expect to see in terms of wildlife or natural features while hiking?
While hiking in Colonel Denning State Park, you can expect to encounter diverse wildlife such as squirrels, deer, and turkeys, especially in the park's extensive woodlands. The park is also a great spot for birdwatching. Key natural features include the unique "S" turn of Doubling Gap, the tranquil Doubling Gap Lake, and the rugged terrain leading to the Flat Rock overlook. The park's connection to the Tuscarora State Forest also opens up vast areas of natural beauty.
What do other hikers enjoy most about hiking in Colonel Denning State Park?
The komoot community highly rates the hiking experiences in Colonel Denning State Park, with an average score of 4.5 stars. Reviewers often praise the rewarding panoramic views from Flat Rock, the peaceful atmosphere around Doubling Gap Lake, and the well-maintained trails that offer a good mix of challenge and accessibility. The park's connection to the larger Tuscarora State Forest is also appreciated for expanding exploration opportunities.
Are there any longer hiking opportunities beyond the park's immediate trails?
Absolutely. Colonel Denning State Park serves as a crucial gateway to the much larger Tuscarora State Forest, which offers an additional 13 trails and 18 miles of hiking. Furthermore, the park connects to the extensive 252-mile Tuscarora Trail, a bypass route of the Appalachian Trail, with approximately 23 miles crossing the Tuscarora State Forest. This provides significant opportunities for longer, multi-day hiking adventures for experienced trekkers.
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