Highlight • Rest Area
Colonel Denning State Park
Hiking
5.0
(1)
Colonel Denning State Park is a 273-acre Pennsylvania state park nestled in the scenic Doubling Gap of Blue Mountain, in Cumberland County. Situated at an elevation of approximately 230 meters, this tranquil park serves as a gateway to the expansive Tuscarora State Forest that surrounds it, offering a blend of natural beauty and recreational opportunities. Its central feature is the 3.5-acre man-made Doubling Gap Lake, providing a focal point for many activities.
Visitors consistently praise the park for its peaceful atmosphere and diverse outdoor recreation options, making it a beloved destination for families and adventurers alike. The direct access to the vast Tuscarora State Forest significantly expands the area for exploration, allowing for longer hikes and deeper immersion in nature. Many are drawn to the rewarding scenic vistas, particularly the panoramic views from Flat Rock, and the inviting waters of Doubling Gap Lake for swimming and fishing.
Before heading out, it's helpful to know that the park offers a 52-site tent and trailer campground, complete with picnic tables, fire rings, and restrooms with warm showers, open seasonally. An ADA-accessible fishing pier is available at Doubling Gap Lake, and an electric vehicle charging station can be found in the main day-use parking area. The park is located on Pennsylvania Route 233, between Newville and Landisburg, making it easily accessible for those planning a visit.
Colonel Denning State Park offers a wide array of activities throughout the year. During warmer months, visitors can enjoy swimming at the lakeside beach from late May to mid-September, or non-motorized boating and fishing in Doubling Gap Lake, which is stocked with trout, bass, and panfish. The park boasts 18 miles of hiking trails, including the challenging Flat Rock Trail leading to Flat Rock Vista, and the self-guided Doubling Gap Trail. When conditions allow in winter, ice fishing and ice skating are popular activities on the lake.
Hikers often highlight the journey to Flat Rock Vista as a standout experience, offering a stunning 180-degree view of the Cumberland Valley. The park's role as a vital hub for the 105-mile Tuscarora Trail also allows for extended adventures into the surrounding state forest. Whether it's the quiet moments by Doubling Gap Lake or the invigorating climb to a scenic overlook, the park provides memorable experiences for all who visit.
With numerous trails and diverse landscapes, Colonel Denning State Park invites hikers, cyclists, and trail runners to explore its natural beauty. You can discover a variety of routes for all skill levels, from leisurely strolls around the lake to more challenging treks into the mountains. Use komoot to plan your next adventure and find the perfect path to experience this remarkable Pennsylvania state park.
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July 29, 2025
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Nearby routes
Best routes near Colonel Denning State Park
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.
1
hikers
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
Details
Informations
Elevation 230 m
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Today
Wednesday 19 August
29°C
15°C
72 %
Additional weather tips
Max wind speed: 14.0 km/h
Frequently Asked Questions
Are dogs permitted at Colonel Denning State Park, and are there specific dog-friendly trails?
Yes, Colonel Denning State Park is generally dog-friendly, allowing leashed dogs in most areas, including trails and the campground. However, dogs are typically not permitted in swimming areas or inside park buildings. Always ensure your dog is on a leash and that you clean up after them to maintain a pleasant experience for all visitors.
What are the parking options at Colonel Denning State Park, and how busy do they get?
The park offers several parking areas, with the main day-use parking area being the largest. Visitors often note that parking can fill up quickly, especially during peak seasons like summer weekends. Arriving earlier in the day is strongly recommended to secure a spot. An electric vehicle charging station is available in the main day-use parking area.
What facilities are available for families with young children at Colonel Denning State Park?
Colonel Denning State Park is well-suited for families. It features a swimming beach at Doubling Gap Lake (open seasonally), picnic tables and charcoal grills throughout the park, and relatively easy trails like the self-guided Doubling Gap Trail. The campground also provides a family-friendly environment with amenities like picnic tables, fire rings, and restrooms.
What are the best times to visit Colonel Denning State Park to avoid crowds or for specific activities?
While the intro mentions general seasonal activities, to avoid crowds, consider visiting on weekdays or during the shoulder seasons (spring and fall). For specific activities: swimming is best from late May to mid-September, fishing is popular year-round (with ice fishing in winter when conditions allow), and hiking to Flat Rock Vista offers stunning fall foliage views.
What are the camping options at Colonel Denning State Park, and how can I make reservations?
The park offers a 52-site tent and trailer campground, open from the start of trout season to the end of deer season in December. Each site includes a picnic table and fire ring, with non-flush toilets and a sanitary dump station nearby. There is also a group campground for up to 20 people. Reservations can typically be made through the Pennsylvania DCNR website.
Are there any ADA-accessible facilities or trails at Colonel Denning State Park?
Yes, Colonel Denning State Park strives for accessibility. An ADA-accessible fishing pier is available at Doubling Gap Lake, allowing visitors with mobility challenges to enjoy fishing. Additionally, the main day-use areas and some picnic facilities are designed to be accessible.
What are the conditions for swimming at Doubling Gap Lake?
Swimming is permitted at the lakeside beach at Doubling Gap Lake from late May to mid-September. The lake is a man-made body of water, and the beach area provides a designated space for swimming. Always check for current conditions and any posted advisories from the park staff before entering the water.
What winter activities are available at Colonel Denning State Park?
When conditions allow, Colonel Denning State Park transforms into a winter wonderland. Popular winter activities include ice fishing and ice skating on Doubling Gap Lake. The park's trails are also suitable for winter hiking, snowshoeing, and cross-country skiing, offering a peaceful experience amidst snow-covered landscapes.
Are there any notable landmarks or viewpoints within Colonel Denning State Park besides Flat Rock Vista?
While Flat Rock Vista is the most prominent viewpoint, offering a 180-degree panoramic view of the Cumberland Valley, the park itself is nestled in the scenic Doubling Gap of Blue Mountain. The 3.5-acre Doubling Gap Lake is a central natural feature. The park also provides direct access to the vast Tuscarora State Forest, which contains numerous other natural features and potential viewpoints along its extensive trail network.
What is the difficulty level of the trails at Colonel Denning State Park, particularly the Flat Rock Trail?
The park offers a range of trails. The self-guided Doubling Gap Trail is considered a moderate one-mile hike, suitable for many visitors. The Flat Rock Trail, however, is a more challenging 2.5-mile (one-way) trail. It involves significant elevation gain to reach Flat Rock Vista, making it a strenuous but rewarding hike for experienced hikers.
Are there restrooms available throughout Colonel Denning State Park?
Yes, restrooms are available at Colonel Denning State Park. The campground offers non-flush toilets, and there are also restrooms with warm showers available seasonally. Additional facilities are typically located in the main day-use areas and near the swimming beach for visitor convenience.
What types of wildlife can visitors expect to see at Colonel Denning State Park?
Being surrounded by the Tuscarora State Forest, Colonel Denning State Park is home to diverse wildlife. Visitors might spot white-tailed deer, various bird species, squirrels, and other small mammals. The lake also supports aquatic life. Early mornings or late evenings are often the best times for wildlife viewing.