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United States
Maryland
Montgomery County

Seneca Creek State Park

The best walks and hikes in Seneca Creek State Park

4.3

(52)

510

hikers

19

hikes

Hiking trails in Seneca Creek State Park explore a 6,300-acre park in Montgomery County, Maryland. The landscape is defined by the 14-mile course of Seneca Creek and the 90-acre Clopper Lake at its center. The park's terrain consists mainly of woodlands and waterside paths with minimal elevation change, offering a network of routes for different abilities.

Best hiking trails in Seneca Creek State Park

  • The most popular hiking route is Clopper Lake loop — Seneca Creek State Park, a…

Last updated: May 28, 2026

8

hikers

#1.

Seneca Ridge and Seneca Greenway Trail Loop

18.3km

04:52

190m

190m

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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Moderate

3.0

(1)

4

hikers

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

Easy
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4.5

(2)

2

hikers

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

Easy

Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.

Hard

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

Moderate
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Tips from the Community

maniboyflex
June 12, 2025, Seneca Creek State Park

Seneca Creek State Park is a great spot for a relaxed hike or ride, especially in the fall when the foliage is at its peak. You’ll pass lakes, creeks, and peaceful forested trails—perfect for enjoying the calm atmosphere.

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Built in 1837 by the Seneca Sandstone Company, this mill was created to process the distinctive red sandstone quarried nearby. Today, the ruins, easily spotted by their red sandstone walls, are accessible via the C&O Canal towpath and are especially visible during the winter months when vegetation is dormant.

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The Black Rock Mill is just off the side of the Seneca Greenway and Seneca Ridge Trail within Seneca Creek State Park. The structure is a reminder of the work that was done in the area in the 1800s.

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Watch out for hunters on the trails north of the mill. It is a managed deer hunting area.

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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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Seneca Creek State Park is a beautiful place to ride, especially during the fall when the landscape comes alive with color. Film fans might recognize it as a filming location for 'The Blair Witch Project'. Maybe don't visit at night...?

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Natalie
January 19, 2024, Black Rock Mill

Built in 1815, little more than the walls remain of this saw and grist mill. Don't let that put you off though, peek inside you can find examples of mill machinery which were added in the 1980s to show how it used to work.

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Matthew
December 2, 2023, Black Rock Mill

The Black Rock Mill is just off the side of the Seneca Greenway and Seneca Ridge Trail within Seneca Creek State Park. The structure is a reminder of the work that was done in the area in the 1800s.

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Frequently Asked Questions

Are there easy, family-friendly hikes in Seneca Creek State Park?

Yes, the park is well-suited for families. Many trails have minimal elevation change, making them accessible for all ages. A great option is the Clopper Lake loop, an easy 3.3-mile (5.4 km) walk that circles the lake and offers plenty of opportunities to see waterfowl and turtles.

Can I bring my dog on the trails in Seneca Creek State Park?

Yes, dogs are welcome in Seneca Creek State Park but must be kept on a leash at all times. Please be sure to clean up after your pet to help keep the trails enjoyable for everyone.

What are the options for a more challenging, longer hike?

For those seeking a longer day out, the Seneca Creek loop via Seneca Ridge Trail offers a moderate 10.5-mile (16.9 km) journey. This route follows the creek through the park's beautiful forested sections, providing a more immersive woodland experience.

Are there any waterfalls in the park?

While the park doesn't feature large waterfalls, you will find scenic stretches where the creek babbles over rocks, creating small cascades and rapids. The flow of Seneca Creek is a defining feature of the landscape, and its sounds accompany you on many of the waterside trails.

What is the best time of year to hike in Seneca Creek State Park?

The park is beautiful year-round, but two seasons are particularly special. Spring brings the bloom of thousands of heirloom peonies in the historic Schwartz Peony Garden. In the fall, the forests surrounding Clopper Lake and Seneca Creek display a vibrant array of autumn colors, making it a favorite time for photographers and hikers alike.

Can I see any historical sites while hiking?

Absolutely. The park is rich with history. Along the trails, you can discover several historic sites, including the ruins of the Black Rock Mill, which dates back to 1815. You can also see the impressive Waring Viaduct, a stone railroad bridge still in use today, from the Seneca Greenway Trail.

Are the trails also open for mountain biking or horseback riding?

Yes, many of the park's over 50 miles of trails are multi-use. The Schaeffer Farm Trails area is particularly well-known and popular with mountain bikers. Horseback riding is also permitted on designated trails. Always check trail signage to confirm which activities are allowed on a specific path.

Where is the best place to park for hiking?

Parking is available at several trailheads throughout the park. For hikes around the 90-acre Clopper Lake, the main entrance at 11950 Clopper Rd, Gaithersburg, provides access to multiple lots. For accessing the Seneca Greenway Trail, there are smaller lots, such as the one off Sugarland Road, which is a popular starting point for that section.

What do other hikers enjoy most about Seneca Creek State Park?

The park is highly regarded by the komoot community, with an average rating of 4.4 stars. Hikers frequently praise the serene lakeside scenery around Clopper Lake and the quiet solitude of the woodland paths along Seneca Creek. The variety of trails, catering to both quick walks and all-day adventures, is also a commonly highlighted feature.

How many hiking trails are in Seneca Creek State Park?

The park features an extensive network of over 50 miles of trails. Komoot highlights more than 15 distinct hiking routes, ranging from easy lakeside loops to longer, moderate treks through the forest, ensuring there's a trail for every skill level.

What kind of scenery can I expect on the trails?

The scenery is quite diverse. You'll experience everything from the open water views of the 90-acre Clopper Lake to the winding, tree-lined paths along Seneca Creek. The trails pass through lush forests, open fields, and along bluffs that offer elevated views over the creek valley.

Are there any entrance fees for the park?

Yes, Seneca Creek State Park has a service charge for entry. Fees can vary for in-state and out-of-state vehicles. It's a good practice to check the official Maryland Department of Natural Resources website for the most current fee information before your visit.

Most popular routes in Seneca Creek State Park

Family-friendly hikes in Seneca Creek State Park

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