
Colonel Denning State Park
Colonel Denning State Park, in north central Cumberland County, is in Doubling Gap, so named by the “S” turn where Blue Mountain doubles back on itself. This feature may be seen from the Doubling Gap Vista in adjacent Tuscarora State Forest. The park has 273 acres of woodland and a 3.5-acre lake.
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Hiking - Picnicking - Swimming - Boating - Fishing - Hunting - Orienteering - Education - Cross-country Skiing - Ice Skating - Organized Group Tenting - Camping Picnicking: Numerous picnic tables and charcoal grills are scattered throughout the park. There are two picnic pavilions that may be reserved up to 11 months in advance for a fee. Unreserved picnic pavilions are free on a first-come, first-served basis. Play equipment is near both picnic pavilions. Make a reservation. Swimming: The sand beach is open from late-May to mid-September, 8 a.m. to sunset. Swim at your own risk. Please read and follow posted rules for swimming. Boating: non-powered boats only Motorboats must display a current boat registration. Non-powered boats must display one of the following: boat registration; launching permit or mooring permit from Pennsylvania State Parks, available at most state park offices; launching permit from the Pennsylvania Fish and Boat Commission. Complete information on boating rules and regulations in Pennsylvania is available from the Pennsylvania Fish and Boat Commission Web site. 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. Complete information on fishing rules and regulations in Pennsylvania is available from the Pennsylvania Fish and Boat Commission Web site.
Hunting woodchucks, also known as groundhogs, is prohibited. Dog training is only permitted from the day following Labor Day through March 31 in designated hunting areas. The Department of Conservation and Natural Resources and the Pennsylvania Game Commission rules and regulations apply. Contact the park office for ADA accessible hunting information. Use extreme caution with firearms at all times. Other visitors use the park during hunting seasons. Firearms and archery equipment used for hunting may be uncased and ready for use only in authorized hunting areas during hunting seasons. In areas not open to hunting or during non-hunting seasons, firearms and archery equipment shall be kept in the owner's car, trailer or leased campsite. The only exception is that law enforcement officers and individuals with a valid Pennsylvania License to Carry Firearms may carry said firearm concealed on their person while they are within the park. Complete information on hunting rules and regulations in Pennsylvania is available from the Pennsylvania Game Commission Web site. Hiking: 18 miles of trails In addition to the 18 miles of hiking trails, the park is a trailhead for the 105-mile Tuscarora Trail. 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. Stay the NightCamping: vault toilets Firewood and ice are for sale at the campground host site. Explore the campground map. Explore camping for more information. Make a reservation. Free Camping for Campground Hosts: 1 host position
Explore organized group tenting for more information. Winter ActivitiesExplore the Winter Report for the current snow and ice depths. 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. Environmental Education and InterpretationAn environmental interpretor offers ecological and historical walks and programs, audiovisual programs, campfires, environmental education activities and youth programs during the summer season. A visitor center, exhibiting plants, animals and minerals found in the park, is open during the summer season. Explore the Calendar of Events for a listing of events from today forward. Explore environmental education and interpretation for more information. Access for People with Disabilities
In an EmergencyContact a park employee or dial 911. Nearest Hospital William Denning, (1737-1830) American Revolution veteran for whom the park is named, was never a colonel but he is deserving of a place in history for his manufacturing of wrought iron cannons. William Denning served his country as a sergeant from March 1778 to April 1780 in Nathaniel Irish’s Company of Artillery Artificers in Benjamin Flower’s Regiment. Denning was stationed just outside of Carlisle, Pa., at Washingtonburg Forge, now Carlisle Barracks. The forge provided armaments for the Continental Army, including cannons. It is at this forge that William Denning made wrought iron cannons in a process of welding gads (strips) of wrought iron in successive layers to produce a cannon lighter and better able to resist failure during firing than cast iron cannons. Unfortunately, none of Denning’s cannons survive today. Historical documents help us imagine what Denning’s cannons looked like. It is not known when or who added the “colonel” to Sergeant William Denning’s name. After the Revolution, William Denning lived out his life near Newville, Pa, and is interred with his only son and daughter in the Big Spring Presbyterian Church cemetery in Newville. His monument reads “Blacksmith and Forger of Wrought Iron Cannon.” Explore the Life of William Denning. The park became a state recreational area about 1930, under the Pennsylvania Bureau of Forestry, and was developed formally in 1936 through the efforts of the Civilian Conservation Corps (CCC) Camp S-111 in Perry County. For more information on the CCC, explore the Civilian Conservation Corps Online Archive. Keep in TouchAdd yourself to the DCNR's online community to receive info on this park, or parks in general. Volunteering
Becoming a Conservation Volunteer is easy.
Scouts and organized groups can earn free camping by completing service projects. Pennsylvania Parks and Forests Foundation
Make a DonationTo a park - find this park's address below To a park or the Bureau of State Parks - Pennsylvania Parks and Forestry Foundation www.paparksandforests.org Through a purchase at a park gift shop Thank you for your support! Education ProgramsWe love when young people ask us how to get involved!
In Watershed Education, teachers and students assess water quality of a local stream on a quarterly basis and develop strategies to solve local water quality problems. ECO Camp - Exploring Careers Outdoors - is a week-long residential camp for a cross-section of high school youth from across Pennsylvania, sponsored by the Department of Conservation and Natural Resources (DCNR). Participate in action-packed, hands on activities and recreational adventures in Pennsylvania’s state parks and forests that expose youth to conservation, recreation and careers in natural resources. Learn how people make a living working in the outdoors. Explore education for more information on these and other programs. Explore the Calendar of Events to find a program near you. iConservePA
Come Work with UsPennsylvania State Parks and the Department of Conservation and Natrual Resources offer a wide range of civil service and non-civil service jobs, from foresters, to rangers, to engineers, to educators, to botanists and so much more. Learn what is currently available. Tell us What You ThinkContact this park with compliments, concerns and issues about the park. Colonel Denning State Park Nearby AttractionsInformation on nearby attractions is available from the Cumberland Valley Visitor Bureau. www.visitcumberlandvalley.com Tuscarora State Forest: Over 91,000 acres of state forest lands are adjacent to, and northwest of the park. These lands are open to the public. There are many scenic and historical features throughout these areas. 717-536-3191 Scenic Views: There are three scenic views on nearby state forest lands that can be reached by vehicle. Contact the park office for the locations of vistas. Hemlocks Natural Area: This stand of old growth hemlock is about 20 miles from the park near New Germantown, Perry County. Information can be obtained by contacting Tuscarora State Forest. State Game Land 169: Several thousand acres of State Game Land 169 are within ten miles of the park. These lands are primarily managed for upland game animals and deer. These lands lie between PA Routes 641 and 997 about five miles southwest of the park. 877-877-9107 Carlisle, Harrisburg, Gettysburg, York and Chambersburg are all within a one-hour drive of the park and accessible over major roadways. Maps and Downloadables
You must have the free Adobe Reader to view the maps and brochures that are in pdf format (.pdf). Alternate versions of the text of the brochures are in rich text and text formats. Click on the files to view them. To download (.rtf) files: Recreational GuideColonel Denning State Park Map (.pdf) (785 kb, 9/11) Interactive GIS MapThe interactive map uses Geographic Information Systems to create a map that does not need to be downloaded and features driving directions, searchable park amenities and customizable maps. Please note that the background maps are maintained by a variety of public sources. Campground MapColonel Denning State Park Campground Map (.pdf) (862 kb, 3/13) ![]() The park is eight miles north of Newville and nine miles south of Landisburg, along PA 233. Driving Directions: The Interactive GIS Map has turn-by-turn driving directions to the park office from the Park information Window. Colonel Denning State Park
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Believing that each generation is responsible for leaving behind a better legacy of good conservation, the Pennsylvania Parks & Forests Foundation (PPFF) was created in 1999 to give supporters and users of Pennsylvania's parks and forests a positive way to contribute to the conservation of our publicly-owned properties. The Pennsylvania Parks & Forests Foundation welcomes the support of individuals and businesses who share a commitment to conserving, protecting, and enhancing the natural, scenic, and recreational areas of this commonwealth. 
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