River of Rocks and Skyline Trail Loop
River of Rocks and Skyline Trail Loop
4.9
(3683)
12,614
runners
River of Rocks and Skyline Trail Loop
01:27
10.1km
410m
Running
Prepare for a challenging jogging experience on the River of Rocks and Skyline Trail Loop. This difficult route stretches for 6.3 miles (10.1 km) and demands a significant climb of 1357 feet (414 metres). You will navigate through the distinctive "River of Rocks" boulder fields, a unique geological feature that defines part of the terrain. The journey, estimated to take around 1 hour and 27 minutes, offers a vigorous workout as you traverse varied landscapes within Hawk Mountain Sanctuary. Expect a dynamic environment that keeps your run engaging from start to finish.
When planning your visit, you will find that the River of Rocks and Skyline Trail Loop is generally accessible within Hawk Mountain Sanctuary. Parking is usually available directly at the sanctuary's trailhead, making it convenient to start your jogging adventure. While the trail is rated difficult, the paths themselves are well-defined, which helps with navigation. Consider starting early in the day to make the most of your time and avoid potential crowds, especially during peak seasons. Always check the sanctuary's official website for any specific operating hours or visitor guidelines before you head out.
This trail stands out for its unique geological formations, particularly the "River of Rocks" boulder fields, which are a natural wonder to observe. These ancient rock flows create a distinctive landscape unlike typical forest trails. The route also incorporates sections of the Skyline Trail, offering diverse views and a comprehensive experience of Hawk Mountain Sanctuary's natural beauty. It's an excellent choice if you are seeking a trail that combines a strenuous physical challenge with remarkable natural features.
Last updated: April 23, 2026
Waypoints
Start point
Parking
Get Directions
4.60 km
Skyline Trail
Highlight (Segment) • Trail
Tip by
10.1 km
End point
Parking
Way Types & Surfaces
Way Types
9.79 km
245 m
104 m
Surfaces
9.79 km
245 m
104 m
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Elevation
Highest point (440 m)
Lowest point (220 m)
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Weather
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Today
Monday 13 July
29°C
17°C
0 %
Additional weather tips
Max wind speed: 14.0 km/h
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This route was planned by komoot.
Frequently Asked Questions
Where is the River of Rocks and Skyline Trail Loop located?
This loop is located within the Hawk Mountain Sanctuary in Kempton, Pennsylvania. It combines sections of the unique River of Rocks Trail with the scenic Skyline Trail.
What is the difficulty level for jogging this loop?
The River of Rocks and Skyline Trail Loop is rated as difficult for jogging. While the River of Rocks section is generally considered moderate for hiking, combining it with the Skyline Trail and the overall elevation gain of approximately 414 meters makes it a challenging route for joggers. Good fitness is recommended.
How long does it typically take to jog the River of Rocks and Skyline Trail Loop?
For jogging, this 10.1 km loop typically takes around 1 hour and 27 minutes to complete, depending on your pace and fitness level.
Are there any entrance fees or permits required for Hawk Mountain Sanctuary?
Yes, Hawk Mountain Sanctuary is a private, non-profit organization, and an entrance fee is required to access its trails. Members of the Sanctuary can enter for free. Check the official Hawk Mountain Sanctuary website for current fee information and operating hours.
Is the River of Rocks and Skyline Trail Loop dog-friendly?
No, pets are generally not permitted on the trails at Hawk Mountain Sanctuary to protect wildlife and maintain the natural environment. Please check the Sanctuary's official rules before visiting.
What is the terrain like on this trail?
The terrain is diverse and challenging. It features two large boulder fields that give the 'River of Rocks' its name, requiring careful footing. Other sections, including the Skyline Trail, are generally accessible but can be rocky and steep in places, especially given the significant elevation changes.
What can I see along the route?
The primary scenic feature is the unique geological formation of the 'River of Rocks' boulder fields, which offer intriguing photo opportunities. The Skyline Trail section provides scenic views. Hawk Mountain Sanctuary is also renowned for its raptor migration, so you might spot various birds of prey, especially during migration seasons.
What is the best time of year to jog this loop?
While accessible year-round, spring and fall offer pleasant temperatures and beautiful scenery. Fall is particularly popular for viewing raptor migration. Be prepared for potential snow and ice in winter, and warmer, humid conditions in summer.
Does the trail intersect other well-known paths?
Yes, the route also passes through sections of the River of Rocks Trail, the Golden Eagle Trail, the Lookout Trail, the Escarpment Trail, the Express Trail, and the East Rocks Trail.
Where can I park for the River of Rocks and Skyline Trail Loop?
Parking is available at the Hawk Mountain Sanctuary visitor center. Follow signs for visitor parking upon arrival. It's advisable to arrive early, especially on weekends during peak seasons, as parking can fill up.
Are there any amenities or facilities near the trailhead?
The Hawk Mountain Sanctuary visitor center offers restrooms, a gift shop, and educational exhibits. There are no cafes or pubs directly at the trailhead, but you can find dining options in nearby towns like Kempton or Hamburg, Pennsylvania.
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