Slippery Rock Gorge and Kildoo Trail Loop
Slippery Rock Gorge and Kildoo Trail Loop
2.6
(29)
85
hikers
03:03
11.1km
170m
Hiking
Hike the 6.9-mile Slippery Rock Gorge and Kildoo Trail Loop in McConnells Mill State Park, featuring a rugged gorge and historic sites.
Last updated: February 26, 2026
Waypoints
Highlight • Gorge
Tip by
33 m
Highlight • Historical Site
Tip by
11.1 km
End point
Parking
Way Types & Surfaces
Way Types
9.18 km
1.71 km
163 m
< 100 m
Surfaces
10.9 km
< 100 m
< 100 m
< 100 m
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Elevation
Highest point (360 m)
Lowest point (280 m)
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Weather
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Today
Friday 8 May
14°C
2°C
22 %
Additional weather tips
Max wind speed: 22.0 km/h
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This route was planned by komoot.
While the entire loop is rated as moderate, sections of the trail, particularly the Slippery Rock Gorge Trail, are considered more difficult due to rugged, rocky terrain and steep elevation changes. The Kildoo Trail portion is generally more moderate, with some easier sections.
The terrain is quite varied and rugged. You'll encounter rocky paths, steep grades, and significant elevation changes, especially along the gorge. Expect to navigate rock ledges and rutted sections. The trail often follows the Slippery Rock Creek, so some areas can be wet with small waterfalls and runoff streams.
This loop offers stunning scenery, including the dramatic Slippery Rock Gorge, the rushing waters of Slippery Rock Creek, and old-growth forests. You'll also pass by McConnells Mill and Covered Bridge, a historic gristmill, and Kildoo Falls. Hell's Hollow, with its small pine cover, is another scenic spot.
Yes, dogs are generally permitted on trails within McConnells Mill State Park, including the Slippery Rock Gorge and Kildoo Trail Loop. However, they must be kept on a leash at all times. Given the rugged and rocky terrain, ensure your dog is accustomed to such conditions and that their paws are protected.
Parking is available at various points within McConnells Mill State Park. A common starting point for this loop is near the historic gristmill and covered bridge, where parking lots are typically available. Arriving earlier in the day, especially on weekends, is advisable to secure a spot.
No, there are generally no entrance fees or permits required for day-use hiking in McConnells Mill State Park. It is a public state park in Pennsylvania. You can find more information on the official state park website: pa.gov.
Spring and fall are generally the best times to hike this loop. In spring, you'll see an abundance of wildflowers and lush greenery. Fall offers spectacular foliage. Summer can be hot and humid, while winter conditions can make the rugged terrain even more challenging due to ice and snow, requiring appropriate gear.
Yes, this loop is an integral part of the larger North Country Trail system. Specifically, the route covers sections of the North Country National Scenic Trail (PA), the Slippery Rock Gorge Trail (NCT), and the Kildoo Trail. You may also encounter parts of the Breakneck Falls Trail.
The eastern end of the Slippery Rock Gorge Trail is noted as the most difficult section, featuring significant climbs and rocky terrain. For rewarding views, the dramatic gorge itself, the rushing Slippery Rock Creek, and Kildoo Falls are highlights. The historic gristmill and covered bridge also offer picturesque scenery.
Given the rugged and challenging terrain, sturdy hiking boots with good ankle support are essential. It's also advisable to bring plenty of water, snacks, a map or GPS device (like komoot), and appropriate clothing for the weather. Trekking poles can be helpful for stability on rocky or steep sections.
While the loop can be hiked in either direction, some hikers prefer to tackle the more challenging sections of the Slippery Rock Gorge Trail first, often by heading east from the covered bridge area, and then returning via the slightly less strenuous Kildoo Trail. This allows you to get the toughest parts done early.