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Routes
Hikes
United States
Maryland
Howard County

Patapsco Valley State Park Deep Run Area

Routes
Hikes
United States
Maryland
Howard County

Patapsco Valley State Park Deep Run Area

The best waterfall hikes and walks in Patapsco Valley State Park Deep Run Area

4.6

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919

hikers

21

hikes

Waterfall hiking trails in Patapsco Valley State Park Deep Run Area traverse a landscape characterized by the Patapsco River's winding course, creating a series of cascades and falls within a densely forested valley. The terrain features varied elevations, from gentle riverside paths to steeper climbs through woodlands. This area is known for its natural beauty, offering a diverse environment for outdoor exploration.

Best waterfall hiking trails in Patapsco Valley State Park Deep Run Area

  • The most popular waterfall hiking route is Avalon Loop Trail, a difficult 21.4 miles (34.5 km) trail that takes about 9 hours 31 minutes to complete, offering extensive views of the river valley and its natural features.
  • Another top favourite among local hikers is Avalon Area – Cascade Falls loop from Elkridge, a moderate 5.3 miles (8.5 km) path. This route features accessible paths leading to the prominent Cascade Falls, winding through a mix of forest and open areas.
  • Local hikers also love the Lost Lake – Cascade Falls loop from Belmont Estate, a 6.9 miles (11.1 km) trail leading through varied forest and alongside the river, often completed in about 3 hours.
  • Hiking in Patapsco Valley State Park Deep Run Area is defined by river valleys, dense woodlands, and numerous cascades, with options for easy family strolls as well as more challenging, longer routes. The network offers options for different ability levels, from easy to difficult.
  • The routes in Patapsco Valley State Park Deep Run Area are highly rated by the komoot community with an average score of 4.7 stars from over 80 reviews. More than 800 hikers have used komoot to explore Patapsco Valley State Park Deep Run Area's varied terrain.

Last updated: July 9, 2026

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hikers

#1.

Avalon Loop Trail

34.5km

09:31

530m

530m

The Avalon Loop Trail offers a deep immersion into Patapsco Valley State Park, weaving through diverse ecosystems from riverbanks to dense forests. You'll navigate undulating terrain, encounter babbling brooks, and discover historical ruins that tell tales of Maryland's industrial past. Keep an eye out for the scenic Cascade Falls and the iconic Orange Grove Swing Bridge, which provide memorable visual anchors along this extensive route. This trail is a true journey through both nature and history.

Planning for this difficult 21.4-mile (34.5 km) hike, which includes 1724 feet (525 metres) of elevation gain and takes roughly 9 hours and 31 minutes, requires an early start. Parking is typically available within the Patapsco Valley State Park Avalon area, but arriving early is always a good strategy, especially on weekends. Ensure you pack plenty of water and snacks, as this is a full-day commitment, and sturdy hiking boots are essential for the varied terrain.

What sets the Avalon Loop Trail apart is its unique blend of natural beauty and historical significance, showcasing remnants of early mills and factories alongside pristine river views. The trail offers a chance to experience varied ecosystems and potentially spot abundant wildlife in the forested areas. It's a challenging route that rewards hikers with a comprehensive exploration of one of the region's most fascinating parks.

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The Avalon Area – Cascade Falls loop from Elkridge offers a delightful journey through Patapsco Valley State Park, where you'll discover lush forests, the meandering Patapsco River, and the charming Cascade Falls. The trail winds through varied terrain, from smoother paths to rocky sections, especially as you follow a tributary with several stream crossings. The highlight is undoubtedly Cascade Falls, a series of beautiful waterfalls and pools that are at their best after a good rain, creating a serene natural escape.

This moderate hiking route covers 5.3 miles (8.5 km) with 399 feet (122 metres) of elevation gain, typically taking around 2 hours and 18 minutes. It's easily accessible and popular, so consider an early start to avoid crowds, especially on weekends. Be prepared for some gradual uphill sections and rocky terrain, and comfortable shoes are essential. Trekking poles can be helpful for the stream crossings and uneven ground.

Beyond the natural beauty, the Avalon Area is rich in history, featuring remnants from Maryland's early mills and factories, including the site of the world's first underwater hydroelectric plant. This historical context adds another layer to your hiking experience, allowing you to explore both nature and the past. The diverse ecosystem also provides opportunities to spot wildflowers during warmer months.

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

Moderate

Moderate hike. Good fitness required. Mostly accessible paths. Sure-footedness required.

Moderate

The Cascade Falls, Morning Choice and Ridge Trail Loop offers a diverse journey through shaded forest, where you can spot local wildlife like deer. You'll navigate varied terrain, from soft singletrack to rooted descents and sustained uphill climbs, with river crossings and sections featuring large boulders and stone steps. The highlight is undoubtedly the picturesque Cascade Falls, especially impressive after a good rain, alongside the iconic Patapsco Swinging Bridge.

This moderate 8.9-mile (14.3 km) hiking route, with 764 feet (233 metres) of elevation gain, typically takes around 3 hours and 55 minutes to complete. Be prepared for potentially muddy sections after rainfall, making appropriate footwear a must. While specific trailhead parking information isn't detailed, arriving early is always a good strategy to ensure a spot, particularly during peak times.

What makes this trail truly notable is its blend of natural beauty and historical intrigue. Beyond the stunning Cascade Falls and the Patapsco Swinging Bridge, you'll encounter unique historical ruins, including old latrines and remnants of the Orange Grove Flour Mill. It's recognized as one of the best waterfall hikes in Maryland, offering a rewarding escape into nature without requiring advanced hiking skills.

Moderate
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Tips from the Community

Khadijah Turnquist Moore
November 26, 2025, Swinging Bridge and Patapsco Riverbank

It gets very cold as you get close to Patapsco River near the bridge. The bridge does move a little but very secure as you cross it. Be mindful if you’re wearing a skirt (Ms Monroe)

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The Orange Grove Area of Patapsco Valley State Park is a beautiful and historic section known for its swinging bridge, with stunning views of the Patapsco River. Here, you can explore the paved Grist Mill Trail for a leisurely walk or venture deeper into the woods to find Cascade Falls. The area also features remnants of old mills and the Bloede Dam removal project, an indication of the park's evolving landscape. With shaded woodlands and riverside trails, it's a fantastic spot for a casual walk or an extended hike. Arriving early is recommended, especially on weekends due to its popularity.

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Marika AbbΓ 
December 29, 2023, Cascade Falls

Small waterfall created by Cascade Creek. Great place to take a break.

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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. It isn't too high up, so even if you're afraid of heights it's still worth passing over the bridge. Be courteous of other pedestrians as the bridge is fairly narrow!

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The Patapsco Valley State Park Glen Artney Area is a portion of Patapsco Valley State Park that is home to an old grist mill, miles of trails, and a portion of the banks of the Patapsco River.

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AverieOutside
December 3, 2023, Lost 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.

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This is one of the most popular, well-known parts of Patapsco Valley State Park. There's a nice picnic area, and miles of unpaved trails that are great for walking and running. Keep an eye out for burbling streams and even a few small waterfalls near the trail.

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AverieOutside
November 15, 2023, Lost 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 run.

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Frequently Asked Questions

How many waterfall hiking trails are there in Patapsco Valley State Park Deep Run Area?

There are over 20 waterfall hiking trails available in the Patapsco Valley State Park Deep Run Area. These routes cater to various skill levels, from easy strolls to more challenging, longer expeditions.

What is the general difficulty level of waterfall hikes in Patapsco Valley State Park Deep Run Area?

The waterfall hikes in this area offer a range of difficulties. You'll find 7 easy routes, 13 moderate trails, and 2 difficult options. This variety ensures there's a suitable path for almost every hiker, from casual walkers to experienced trekkers.

Are there family-friendly waterfall trails in Patapsco Valley State Park Deep Run Area?

Yes, the area includes several easy routes perfect for families. These trails often feature accessible paths and gentle terrain, allowing everyone to enjoy the natural beauty and cascades. Look for routes marked as 'easy' for the most family-friendly options.

What are the typical lengths of waterfall trails in the Patapsco Valley Deep Run Area?

Trail lengths vary significantly. You can find shorter, moderate loops like the Avalon Area – Cascade Falls loop from Elkridge, which is about 8.5 km (5.3 miles) and takes around 2 hours 19 minutes. For a longer adventure, the difficult Avalon Loop Trail spans 34.5 km (21.4 miles) and can take over 9 hours to complete.

Can I bring my dog on the waterfall hikes in Patapsco Valley State Park Deep Run Area?

Patapsco Valley State Park is generally dog-friendly, but regulations can vary by specific trail or area. It's always recommended to keep your dog on a leash and to check the latest park rules before heading out to ensure a pleasant experience for everyone.

Are there any circular waterfall routes in the Patapsco Valley Deep Run Area?

Yes, many of the waterfall trails are designed as loops, offering a varied experience without retracing your steps. Examples include the moderate Lost Lake – Cascade Falls loop from Belmont Estate and the Cascade Falls, Morning Choice and Ridge Trail Loop.

What is the best time of year to visit the waterfalls in Patapsco Valley State Park Deep Run Area?

The waterfalls are beautiful year-round. Spring offers lush greenery and increased water flow from snowmelt and rain, while autumn provides stunning fall foliage. Even in winter, frozen cascades can be a unique sight, though trails might be icy. Summer is popular for enjoying the cool forest air.

What should I bring for a waterfall hike in this area?

Given the varied terrain, sturdy hiking boots are essential. Depending on the season, consider bringing layers of clothing, rain gear, and plenty of water. Trekking poles can be helpful on steeper or uneven sections. Always carry a map or use a navigation app like komoot, and pack snacks.

What do other hikers enjoy most about the waterfall trails in Patapsco Valley State Park Deep Run Area?

The komoot community highly rates the trails here, with an average score of 4.7 stars from over 80 reviews. Hikers often praise the diverse landscapes, the refreshing presence of the Patapsco River and its cascades, and the well-maintained paths that wind through dense woodlands.

Are there any specific waterfalls or notable features to look out for?

Cascade Falls is a prominent feature mentioned in several popular routes, such as the Cascade Falls – Avalon Area loop from University of Maryland Baltimore County. The entire area is characterized by the Patapsco River's winding course, creating numerous smaller cascades and falls throughout the forested valley.

Where can I find parking for waterfall hikes in Patapsco Valley State Park Deep Run Area?

Patapsco Valley State Park has multiple access points and parking lots. For routes like those around Avalon and Cascade Falls, parking is typically available near the Avalon Area entrance or other designated park lots. It's advisable to check specific trailheads or park maps for the most convenient parking options.

Most popular routes in Patapsco Valley State Park Deep Run Area

Hiking in Patapsco Valley State Park Deep Run Area

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