Detweiler Run Natural Area loop

Parking is generally available at designated trailheads within Rothrock State Forest that provide access to the Detweiler Run Natural Area. Specific parking areas are usually well-marked. Always check local signage for any restrictions.

No, you typically do not need a permit or have to pay an entrance fee for general recreational activities like mountain biking in Rothrock State Forest, which includes the Detweiler Run Natural Area. However, always check the official Pennsylvania DCNR website for any updated regulations or specific requirements for organized events.

The difficulty of this loop varies significantly. While the Detweiler Run Natural Area trail itself is often considered easy to moderate, especially when ridden downhill, the full loop as mapped here is rated difficult. It incorporates sections of other trails, like the Mid-State Trail, which are known for being incredibly rocky and physically demanding. Beginners should be prepared for challenging climbs and technical sections if attempting the full loop.

The terrain is quite varied. Sections of the Detweiler Run Trail are primarily doubletrack, often feeling like singletrack, and are known for being less rocky than other local trails, offering a 'mellow fire road ride.' However, when the route connects to trails like the Mid-State Trail, you'll encounter long stretches of rock gardens and technical sections that require focused riding and good bike handling skills.

You'll ride through a remote and beautiful landscape. The Detweiler Run Natural Area is famous for its old-growth white pine and eastern hemlock trees, some nearly 36 inches in diameter, creating a majestic forest canopy. There's also a dense rhododendron understory, particularly along Detweiler Run, which is especially scenic when in bloom. The area is part of the Thickhead Mountain Wild Area, characterized by mixed-oak forests.

The best time to mountain bike this loop is generally during the spring, summer, and fall months. Spring offers lush greenery and blooming rhododendrons, while fall provides stunning foliage. Summer is also good, but be mindful of potential heat and humidity. Winter riding can be challenging due to snow and ice, making some sections impassable or very difficult.

Yes, dogs are generally permitted on trails within Rothrock State Forest, including the Detweiler Run Natural Area. However, they must be kept on a leash at all times and you are responsible for cleaning up after them. Be aware that some sections of this loop are very rocky and long, which can be tough on paws, so consider your dog's endurance.

Yes, this route integrates with several other trails within the Rothrock State Forest network. You'll encounter sections of the Rothrock Hikiing, Thickhead Mountain Hiking, Mid-State Trail, Long Mountain Trail, Deer Tick Trail, Dutch Alvin Trail, Brush Ridge Extension Trail, and the Standing Stone Creek road, among others. This allows for various customizable ride options.

The primary highlight is riding through the ancient forest of the Detweiler Run Natural Area itself, with its impressive old-growth trees and rhododendron thickets. You'll also traverse sections of the Standing Stone Creek road, offering a different riding experience. The remote nature of the area and its ecological significance are key features.

Given the difficult rating, significant distance (over 52 km), and substantial elevation gain, this specific loop is generally not recommended for young children or inexperienced riders. While the Detweiler Run Trail itself can be ridden in easier sections, the full loop includes very rocky and technical terrain that would be challenging for most kids.