Routes

Planner

Features

Updates

App

Login or Signup

Get the App

Login or Signup

Routes
Hiking trails & Routes
Carroll County
Eldersburg

Hugg-Thomas Loop: Tunnel Topper

Moderate

Hugg-Thomas Loop: Tunnel Topper

02:15

8.14km

140m

Hiking

The Hugg-Thomas Loop: Tunnel Topper offers a dynamic hiking experience through the forested Hugg-Thomas Wildlife Management Area, where you'll encounter a mix of rough, muddy, and steep sections alongside more accessible paths. The route winds through dense oak, hickory, and yellow poplar trees, with glimpses of the Patapsco River. It's a moderate 5.1-mile (8.1 km) hike with 452 feet (138 metres) of elevation gain, typically completed in about 2 hours and 14 minutes, making it a great option for those seeking varied terrain and a good workout.

To plan your visit, head to the Hugg-Thomas Wildlife Management Area within Patapsco Valley State Park in Sykesville, Maryland. While specific parking information isn't detailed, it's wise to arrive early, especially on weekends, as this is one of the most popular urban hiking routes in the park. Be prepared for potentially muddy conditions, particularly after rain, and ensure you have appropriate footwear for the varied terrain.

Beyond the natural beauty, this trail is rich in history. You can explore the ruins of the 19th-century Hugg mansion within the WMA, offering a unique historical landmark along your journey. The broader Patapsco Valley State Park also features other notable historical structures like the Thomas Viaduct and the Swinging Bridge, blending natural exploration with a sense of the past.

Last updated: June 9, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Waypoints

A

Start point

Get Directions

1

3.33 km

Hugs Thomas Wildlife Management Area

Highlight • Natural

A large area of protected land that includes the ruins of the Admiral Jacob Hugg's mansion from which the area gets its name. There is a small parking area and an information board here.

Tip by

B

8.14 km

End point

Loading

Way Types & Surfaces

Way Types

3.56 km

2.79 km

1.75 km

< 100 m

Surfaces

3.26 km

3.15 km

1.66 km

< 100 m

< 100 m

Sign up to see more specific route details

Sign up for free

Elevation

Elevation

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

Highest point (160 m)

Lowest point (110 m)

Sign up to see more specific route details

Sign up for free

Weather

Powered by Foreca

Today

Wednesday 15 July

37°C

21°C

0 %

Additional weather tips

Max wind speed: 14.0 km/h

to get more detailed weather forecasts along your route

Comments

guide_signup

Want to know more?

Sign up for a free komoot account to join the conversation.

Sign up for free

This route was planned by komoot.

Save

Edit route

Download GPX

Move start point

Print

Share

Embed on a website

Report an Issue

Report restricted access

Frequently Asked Questions

Where can I park for the Hugg-Thomas Loop: Tunnel Topper trail?

Parking for trails within the Hugg-Thomas Wildlife Management Area is typically available at designated parking lots. Look for a signboard at the parking lot, which usually displays a map of the main trails.

Is the Hugg-Thomas Loop: Tunnel Topper trail dog-friendly?

Yes, dogs are generally permitted in the Hugg-Thomas Wildlife Management Area. However, it's always best to keep your dog on a leash to protect wildlife and ensure a pleasant experience for all visitors. Please remember to pack out any waste.

What is the best time of year to hike this loop?

The Hugg-Thomas Loop offers diverse scenery throughout the year. Spring and summer are excellent for seeing abundant wildflowers and lush greenery. Fall provides beautiful foliage, while winter can offer a peaceful, stark landscape. Be aware that trails can be particularly muddy after rain, especially in spring or during thaw.

Are there any permits or entrance fees required for hiking in Hugg-Thomas WMA?

Generally, there are no specific permits or entrance fees required for day-use hiking within the Hugg-Thomas Wildlife Management Area. However, it's always a good idea to check the official Maryland Department of Natural Resources website for any updated regulations or special requirements before your visit.

What is the terrain like on the Hugg-Thomas Loop: Tunnel Topper?

The terrain on this loop is quite varied and can be challenging. Expect unmaintained paths, including farm roads, dirt tracks, and grassy swaths through fields and forests. Sections can be rough, muddy, and steep, particularly on hillsides. The overall difficulty is considered moderate to difficult due to these conditions.

Is this trail suitable for beginner hikers?

Given the unmaintained nature of the trails, varied terrain, and potentially steep and muddy sections, this loop might be challenging for absolute beginners. Hikers should have a moderate level of fitness and be prepared for uneven surfaces. It's not ideal for those seeking a perfectly smooth, easy walk.

Is the Hugg-Thomas Loop: Tunnel Topper a marked trail?

Trails within the Hugg-Thomas Wildlife Management Area generally lack specific trail markers. While a map displaying main trails is usually posted at the parking lot signboard, it's recommended to use a reliable navigation app like komoot or a professionally produced map of the Patapsco Valley State Park (which includes this area) for comprehensive guidance.

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

The area boasts a rich mix of habitats. You'll hike through mature upland deciduous forests, blocks of conifers, and extensive fields often planted with game food crops. Seasonal streams, small wetland areas, and man-made ponds add to the natural beauty. It's an excellent spot for birdwatching, and you might also spot various other wildlife.

Does this route connect to other trails?

Yes, the route incorporates sections of several other paths. You will find yourself on parts of the Sykesville Linear Trail and the Shannon Run Path during your hike.

Are there any historical features or landmarks along the way?

Yes, the Hugg-Thomas WMA holds historical significance. You can find the ruins of the 19th-century Hugg mansion on the northern parcel of the property, offering a glimpse into the area's past.

What does 'Tunnel Topper' refer to in the trail name?

While the Hugg-Thomas WMA doesn't contain a literal tunnel to 'top,' the name 'Tunnel Topper' might be a local nickname or a reference to a specific section of the trail. If you were looking for a trail that goes over a physical tunnel, the well-known Paw Paw Tunnel Hill Trail at the Chesapeake & Ohio Canal National Historical Park offers that experience, but it is a different location.

Nearby routes

Moderate

4.6

35

Cascade Falls, Morning Choice and Ridge Trail Loop

03:56h

14.3km

230m

Explore
RoutesRoute plannerFeaturesHikesMTB TrailsRoad cycling routesBikepackingSitemap
Download the app
Follow Us on Socials

© komoot GmbH

Privacy Policy