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Routes
Hiking trails & Routes
United States
Maryland
Baltimore County
Catonsville

Grist Mill Trail

Easy

4.6

(6291)

18,189

hikers

Grist Mill Trail

01:21

5.12km

30m

Hiking

Embark on an easy hike along the Grist Mill Trail, a 3.2-mile (5.1 km) route that winds through heavily wooded areas alongside the Patapsco River. You will experience a gentle elevation gain of just 113 feet (34 metres), making it a comfortable journey for about 1 hour and 20 minutes.…

Last updated: April 23, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Waypoints

A

Start point

Parking

Get Directions

1

441 m

Lost Lake

Highlight • Lake

Lost Lake is a small lake just north of the Patapsco River within Patapsco Valley State Park's Glen Artney Area. The lake often has various species of birds and vegetation to look at while you ride.

Tip by

2

1.01 km

Vineyard Spring Trailhead

Highlight • Trail

There's a little tunnel under the railway tracks that marks the start of the Vineyard Spring Trail.

Tip by

3

2.78 km

This popular swinging bridge crosses the Patapsco River. It is a wooden suspension bridge with metal cables.

On the bridge you'll have great views of the river and surrounding woodland. …

Tip by

4

2.89 km

The Patapsco River flows through central Maryland and into the Chesapeake Bay.

The river is known as the River of History as it played an essential role in Maryland's Industrial …

Tip by

5

4.07 km

Ilchester Tunnel

Highlight • Monument

If you’re looking for a thrilling trail running experience, you might want to check out the Ilchester Tunnel in Catonsville, Maryland. This viewpoint on the 1.7-mile loop trail takes you …

Tip by

6

4.40 km

Grist Mill Trail viewpoint

Highlight • Viewpoint

Here you can find a bench where you can sit and enjoy views of the Patapsco River.

Tip by

7

4.92 km

The Grist Mist Trail passes through Patapsco Valley State Park, alongside the Patapsco River. For a large part of the trail, it also passes alongside the railroad.

It is best …

Tip by

B

5.12 km

End point

Parking

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Way Types & Surfaces

Way Types

4.24 km

412 m

231 m

221 m

< 100 m

Surfaces

2.75 km

1.52 km

449 m

276 m

103 m

< 100 m

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

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Weather

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Today

Sunday 24 May

19°C

11°C

16 %

Additional weather tips

Max wind speed: 13.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

What is the terrain like on the Grist Mill Trail?

The Grist Mill Trail features a primarily wide and paved surface, making it relatively flat and easy to navigate. It runs alongside the Patapsco River and active train tracks, offering a smooth experience suitable for various activities.

Is this trail suitable for beginners or families with strollers?

Yes, the Grist Mill Trail is considered easy and highly accessible. Its paved, relatively flat terrain with a maximum grade of 4% makes it ideal for beginners, families, and those with strollers or disabilities. It's a less strenuous option compared to other trails in Patapsco Valley State Park.

What interesting sights will I see along the Grist Mill Trail?

You'll encounter a blend of natural beauty and historical elements. Highlights include the ruins of the Orange Grove Flour Mill, the site of the former Bloede's Dam, and remnants of the historic B&O Railroad. Don't miss the fun Swinging Bridge, Patapsco Valley State Park and another Swinging Bridge on Grist Mill Trail. You'll also enjoy views of the Patapsco River and active train tracks, with a notable Grist Mill Trail viewpoint.

Is the Grist Mill Trail a loop or out-and-back?

The Grist Mill Trail is primarily an out-and-back route. It extends approximately 2.5 miles in one direction, from Ilchester Road to Lost Lake, making it about 5 miles round trip.

Where can I park to access the Grist Mill Trail?

Parking is available at various points along the trail, including near the Vineyard Spring Trailhead. Given its popularity, especially on weekends, arriving earlier in the day is recommended to secure a spot.

Is the Grist Mill Trail dog-friendly?

Yes, the trail is dog-friendly. Please ensure your dog remains on a leash and that you clean up after them to help keep the park enjoyable for everyone.

What is the best time of year to hike the Grist Mill Trail?

The trail is enjoyable year-round. Its heavily wooded surroundings provide significant shade, making it bearable even on hot days. Spring and fall offer pleasant temperatures and beautiful foliage, while winter can provide a unique, serene experience, though conditions may vary.

Are there any fees or permits required to access the Grist Mill Trail?

As the Grist Mill Trail is located within Patapsco Valley State Park, standard Maryland State Park entrance fees may apply, especially during peak seasons or specific times. It's advisable to check the official Maryland State Parks website for current fee schedules and regulations before your visit.

Does the trail intersect other well-known paths?

Yes, while the main route is the Grist Mill Trail, it also passes through sections of the Patapsco Alt HoCo Thru Trail. Additionally, numerous dirt trails of varying lengths and skill levels, such as Garrett's Pass and Vineyard Spring Trail, branch off from it, offering options for more challenging hikes.

What makes the Grist Mill Trail unique compared to other trails in Patapsco Valley State Park?

Its unique appeal lies in its blend of accessibility, historical significance, and scenic river views. Unlike many of the park's more rugged, natural-surface trails that climb hillsides, this trail offers a generally flat, paved surface, making it suitable for a wider range of users. The presence of active train tracks and historical ruins like the Ilchester Tunnel and multiple swinging bridges also adds to its distinctive character.

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