4.8
(9251)
14,743
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2.01km
20m
Hiking
Embark on the easy Lake Grubb Loop, a pleasant hike spanning 1.3 miles (2.0 km) with a gentle elevation gain of 67 feet (21 metres), typically completed in about 32 minutes. This tranquil route guides you around the scenic 13-acre Lake Grubb, once an iron ore mine pit now transformed into a peaceful body of water. As you walk, the path winds through a heavily wooded area, offering abundant shade and a lush, almost jungle-like atmosphere. You will enjoy clear views of the lake from various points, and you might even spot wildlife like turtles and frogs near the water's edge. It's a perfect choice for a leisurely stroll immersed in nature.
Lake Grubb Nature Park provides several amenities to enhance your visit, including picnic pavilions, a playground, and convenient restrooms. You are welcome to fish from the shore, but please note that swimming, boating, and pets, other than service dogs, are not permitted on the lake. Be prepared for potentially slick and muddy conditions on the dirt path, especially after rain, as the dense overhead canopy can keep the ground wet for longer periods.
This trail offers a unique opportunity to explore a landscape with a rich industrial past, as Lake Grubb itself is a former iron ore mine pit that has naturally evolved into a vibrant aquatic ecosystem. The heavily wooded surroundings contribute to a serene environment, making it a notable spot for observing local flora and fauna. It stands out as an accessible natural retreat within the region, providing a quick escape into a verdant setting.
Last updated: April 23, 2026
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The Lake Grubb Loop is approximately 1 to 1.3 miles long and generally takes between 20 to 45 minutes to complete, depending on your pace and how often you stop to enjoy the scenery.
The trail primarily consists of dirt paths with occasional gravel sections. It winds through a heavily wooded area, offering a lush, shaded experience. While generally flat, there are some mild inclines and 'somewhat hilly' sections. Be aware that the dirt path can remain slick and muddy for an extended period after rain due to the dense tree canopy.
Yes, the trail is rated as easy to moderately easy, making it well-suited for beginners, children, and seniors. It's considered an ideal 'multi-generational' hike. A quarter-mile section of the trail is also ADA accessible.
No, pets are generally not permitted on the Lake Grubb Loop trail or within the surrounding park, with the exception of service dogs.
The park surrounding the trail is well-equipped with amenities for visitors, including picnic pavilions, a playground, and restroom facilities. You'll also find numerous benches strategically placed along the trail for resting and enjoying the tranquil scenery.
The main highlight is the beautiful Lake Grubb itself, which was historically an iron ore mine pit. You can enjoy scenic views of the lake from various clearings and vantage points. Keep an eye out for wildlife such as turtles, frogs, and tadpoles near the water's edge.
Thanks to its dense tree canopy, the trail offers significant shade, making it comfortable even on warmer days. However, be mindful that the path can stay muddy after rain. Spring and fall offer pleasant temperatures and beautiful foliage, while summer provides a cool escape from the heat.
There are no permits required, and there is no entrance fee to access Lake Grubb Nature Park or hike the Lake Grubb Loop trail.
The Lake Grubb Loop is located within Lake Grubb Nature Park in Mountville, PA. Parking is available at the park, providing convenient access to the trailhead.
No, swimming and boating are prohibited in Lake Grubb. However, fishing is permitted from the shore.
Lake Grubb has a rich history, as it was originally an iron ore mine pit active from approximately 1850 to 1907. The lake itself formed when the mine pit eventually filled with water, transforming it into the natural feature you see today.
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