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Colonel Denning State Park

Newville PA 17241
Phone: (717) 776-5272
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The 2.5-mile Flat Rock Trail rises to Flat Rock, a beautiful scenic vista of the Cumberland Valley. The one-mile, self-guiding Doubling Gap Trail is a moderate hike. The Hiking and Nature Trail Guide is available at the park office and has a map and detailed description of the hiking trails in the park and surrounding forest lands.
In addition to the 18 miles of hiking trails, the park is a trailhead for the 105-mile Tuscarora Trail. Take binoculars and explore mixed deciduous and coniferous woodlands, meadow, and marsh habitat for a variety of wildlife species including the southern flying squirrel, white-tailed deer, red fox, spotted salamander, green frog, and eastern box turtle.
Picnicking: This wooded park has over 200 picnic tables and a limited number of charcoal grills.
Swimming: The sand beach is open from late-May to mid-September, 8 a.m. to sunset.
Fishing: The 3.5-acre Doubling Gap Lake has trout fishing. Department of Conservation and Natural Resources and Pennsylvania Fish and Boat Commission limits, seasons and regulations apply.
Hunting and Firearms: Many acres are open to hunting, trapping and the training of dogs during established seasons. Common game species are deer, squirrel and turkey. Hunting is also permitted on the adjacent Tuscarora State Forest.
Raptor Watching: The avian inventory lists an impressive 100 species including several species of hawk, owl, woodpecker, warbler, flycatcher, and vireo. Regular forest species include Eastern Wood-Pewee, Scarlet Tanager, Veery, Wood Thrush, and Blackburnian Warbler.
Environmental Education: In the summer, look for interpretive programming and weekend events. Free and open to the public, dawn to dusk year-round. The EE Center is open may–September 8 a.m.–4 p.m. daily.
Orienteering: There are three courses to challenge your map and compass skills: beginner, intermediate and advanced. Trail maps are available at the park office or the nature center.
Camping: rustic sites
The 52-site, tent and trailer campground is open from the opening day of trout season in April to the day after deer season in December. Each site has a picnic table and fire ring, and are near non-flush toilets and a sanitary dump station. Sites 1-12 are pet-friendly.
Cross-country Skiing: While there is no formal cross-country skiing trail system, skiing is permitted on existing roads and trails and in all areas of the park. Terrain is moderately hilly to mountainous.
Ice Skating: When ice conditions permit, a one-acre area is maintained and monitored for ice skating on Doubling Gap Lake. Skating is permitted from 8 a.m. until sunset.
Make a reservation.
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