Black Rock Mill – Seneca Creek State Park loop from Gaithersburg

Black Rock Mill – Seneca Creek State Park loop from Gaithersburg

Moderate

3.4

(3)

riders

Black Rock Mill – Seneca Creek State Park loop from Gaithersburg

02:07

45.4km

450m

Road cycling

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride. The starting point of the route is accessible with public transport.

Last updated: August 3, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Seneca Creek State Park

South Germantown Recreational Park

Waypoints

Start point

Train Station

Get Directions

16.4 km

South Germantown Recreational Park

Highlight • Rest Area

South Germantown Recreational Park is a very busy Montgomery Park. It is a large park that offers a variety of activities including hiking, biking, archery, miniature golf, swimming, soccer, picnicking, and adventure play along with many more.

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18.9 km

Autumn Forest in Seneca Creek State Park

Highlight • Forest

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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19.5 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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19.5 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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29.7 km

Blockhouse Point Conservation Park

Highlight • Forest

This riverside park protects 630 acres of varied natural resources. You'll find miles of trails to explore the park and can if you follow the Muddy Branch Greenway Trail eastward …

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33.8 km

Travilah Oak

Highlight • Natural Monument

This ancient oak there when the US constitution was written. It’s an interesting landmark. There is a restaurant and a convenience store nearby, making it a fun excursion!

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