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Hiking trails & Routes
Montgomery County
Germantown

Seneca Creek Greenway Trail

Moderate

Seneca Creek Greenway Trail

02:19

8.87km

60m

Hiking

Hike the moderate 5.5-mile Seneca Creek Greenway Trail through diverse woodlands and floodplains, passing historic Black Rock Mill.

Last updated: February 26, 2026

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Your route passes through protected areas

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Waypoints

A

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1

6.87 km

Black Rock Mill

Highlight • Historical Site

Just the walls remain of the 1815 Black Rock saw- and gristmill in Seneca Creek State Park. The structure was stabilized and representations of mill machinery were added in 1980.

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2

6.90 km

Seneca Creek State Park

Highlight • Forest

Seneca Creek State Park offers diverse recreational opportunities amid its 6,300 acres of woodland and water. Visitors can explore miles of trails, fish in the creek, enjoy picnics, and partake in boating activities, creating memorable outdoor experiences for all.

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8.87 km

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Way Types & Surfaces

Way Types

8.77 km

109 m

Surfaces

8.70 km

136 m

< 100 m

< 100 m

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Elevation

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Weather

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Today

Wednesday 15 July

38°C

22°C

0 %

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Max wind speed: 15.0 km/h

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Frequently Asked Questions

Where can I park to access the Seneca Creek Greenway Trail?

Parking and access points are available at various locations along the trail. Some common access points include Route 355 and the Watkins Mill Trail entrances. You can also find parking near the Riffleford Road trailhead for this specific route.

Is the Seneca Creek Greenway Trail dog-friendly?

Yes, the trail is generally dog-friendly. However, it's always best to keep your dog on a leash and practice Leave No Trace principles by cleaning up after your pet.

When is the best time of year to hike this trail?

The trail offers beautiful scenery year-round. Spring brings vibrant wildflowers, while autumn showcases stunning fall foliage. Summer is great for enjoying the shade of the woodlands, and winter can offer a peaceful, snow-covered landscape. Consider visiting in spring or fall for the most comfortable temperatures and picturesque views.

Are there any permits or entrance fees required for the Seneca Creek Greenway Trail or Seneca Creek State Park?

While the Seneca Creek Greenway Trail itself typically does not require specific hiking permits, it passes through Seneca Creek State Park. Maryland State Parks generally have entrance fees, especially on weekends and holidays, or for out-of-state visitors. It's advisable to check the official Maryland State Parks website for current fee schedules and regulations before your visit.

What kind of scenery and wildlife can I expect to see along the trail?

You'll experience diverse landscapes, including picturesque upland woodlands and floodplains, with the soothing sounds of Seneca Creek. Expect to see towering hardwoods, vibrant wildflowers, and various bird species like woodpeckers and songbirds. White-tailed deer are also commonly spotted.

What notable features or historical sites can I see along the Seneca Creek Greenway Trail?

The trail is rich in history and natural beauty. You can visit Black Rock Mill, a historical site. Other notable features include a natural rock bridge near Watkins Mill Road, remnants of the mill race from the former Middlebrook Mills and Watkins Mill, and the ruins of the Seneca stonecutting mill. You'll also pass under a stone railroad bridge in certain sections.

Does the Seneca Creek Greenway Trail connect with other hiking paths?

Yes, the trail is part of a larger greenway system and intersects with several other paths. Along this route, you'll find sections that overlap with the Seneca Ridge Trail, MoCoEpic South, Green Trail, and White Loop Trail.

Is the Seneca Creek Greenway Trail a loop or an out-and-back route?

The Seneca Creek Greenway Trail is primarily an extensive linear trail, part of a larger greenway system. This specific route from Riffleford Road to Route 28 is an out-and-back segment. However, you can combine sections or use multiple access points to create shorter loops or varied out-and-back experiences.

Is the trail suitable for beginners or families?

The trail is generally considered moderate in difficulty. While some sections, particularly within Great Seneca Stream Valley Park, can be hilly and steep, other segments, like those near Watkins Mill Road, are graded as easy. Families and beginners can enjoy the easier sections, but should be prepared for some challenging inclines if attempting longer portions.

Are there any sections of the trail that are restricted to foot traffic only?

Yes, while much of the natural surface trail may be shared by hikers, bikers, and equestrians, certain segments within the floodplains are specifically restricted to foot traffic only. Always pay attention to signage along the route.

What should I bring for a hike on the Seneca Creek Greenway Trail?

For a comfortable hike, bring plenty of water, especially on warmer days. Wear appropriate hiking shoes as the trail is natural surface and can be uneven. Sunscreen, insect repellent, and a map or GPS device are also recommended. Don't forget snacks and a camera to capture the scenic views!

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