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Routes
Mountain biking trails

Perimeter Trail and Tilly Trail Loop

Routes
Mountain biking trails

Perimeter Trail and Tilly Trail Loop

Easy

5.0

(5)

64

riders

Perimeter Trail and Tilly Trail Loop

01:29

17.5km

120m

Mountain biking

The Perimeter Trail and Tilly Trail Loop is an easy 10.9-mile (17.5 km) mountain biking route in Rosaryville State Park. You will gain 394 feet (120 metres) over an estimated 1 hour and 28 minutes, making it a great option for a quick ride.

What to expect on Perimeter Trail…

Last updated: April 23, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Rosaryville State Park

Waypoints

A

Start point

Parking

Get Directions

1

2.21Β km

Perimeter Trail Loop

Highlight (Segment) β€’ Trail

The Perimeter Trail is a smooth, fast and flowy singletrack. You can ride the loop in both directions. Watch this video to get first impressions:

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B

17.5Β km

End point

Parking

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Way Types & Surfaces

Way Types

14.4Β km

3.03Β km

< 100Β m

Surfaces

17.4Β km

< 100Β m

< 100Β m

< 100Β 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

Powered by Foreca

Today

Monday 8 June

27Β°C

16Β°C

0Β %

Additional weather tips

Max wind speed: 19.0Β km/h

to get more detailed weather forecasts along your route

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Frequently Asked Questions

How long does it typically take to mountain bike this loop?

This mountain bike loop is designed to be an enjoyable ride, typically taking around 1 hour and 29 minutes to complete. This duration can vary based on your pace and how often you stop to enjoy the surroundings.

Is this trail suitable for beginner mountain bikers?

Yes, this route is rated as easy, making it a great option for beginner mountain bikers or those looking for a relaxed ride. While specific detailed terrain information for the Tilly Trail in Rosaryville State Park isn't extensively documented, the overall easy rating suggests it's generally accessible.

What is the terrain like on this mountain bike trail?

The trail is primarily designed for mountain biking, and given its 'easy' difficulty rating, you can expect a mix of relatively smooth paths. As it incorporates sections of the Perimeter Trail Loop and the Tilly Trail within Rosaryville State Park, you'll likely encounter typical state park singletrack and dirt paths. Expect some roots and potentially small obstacles, but nothing overly technical.

Where can I park to access the Perimeter Trail and Tilly Trail Loop?

To access this loop, you'll want to head to Rosaryville State Park. There are designated parking areas within the park that provide convenient access to the trailheads for both the Perimeter Trail and the Tilly Trail sections.

Are there any entrance fees or permits required for Rosaryville State Park?

Yes, Rosaryville State Park, like many state parks, typically has entrance fees. It's always a good idea to check the official Maryland Department of Natural Resources website for the most current information on entrance fees and any specific permits that might be required for mountain biking or other activities.

Is the Perimeter Trail and Tilly Trail Loop dog-friendly?

Generally, dogs are allowed in Maryland State Parks, including Rosaryville State Park, but they must be kept on a leash no longer than six feet at all times. Please ensure you clean up after your pet to help keep the trails enjoyable for everyone.

What is the best time of year to mountain bike this route?

The best time to mountain bike this loop is typically during the spring and fall. These seasons offer milder temperatures and beautiful scenery. Summer can be hot and humid, while winter might bring muddy or icy conditions, depending on the weather.

What can I see along the route?

As you ride this loop, you'll experience the natural beauty of Rosaryville State Park. The route includes sections of the Perimeter Trail Loop and the Tilly Trail, winding through wooded areas. While specific viewpoints aren't highlighted, the park's dense forests offer a peaceful and immersive outdoor experience.

Does this trail intersect with other well-known paths?

Yes, this route incorporates significant portions of existing trails within Rosaryville State Park. You'll be riding on sections of the official "Perimeter Trail" for about 31%, 29%, 23%, and 20% of the route, and the "Tilly Trail" for approximately 26% of the route.

Are there any amenities or facilities available at Rosaryville State Park?

Rosaryville State Park typically offers basic amenities such as restrooms and picnic areas. It's always a good idea to check the park's official website before your visit for the most up-to-date information on available facilities and services.

What should I bring for a mountain bike ride on this loop?

For an easy mountain bike ride like this, essential items include a well-maintained mountain bike, a helmet, water, snacks, and basic repair tools (like a spare tube and pump). Given the wooded environment, insect repellent can also be useful, especially during warmer months.

Nearby routes

Easy

5.0

64

Perimeter Trail and Tilly Trail Loop

01:29h

17.5km

120m

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