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Routes
Hikes
United States
Virginia
Fairfax County

Hemlock Overlook Regional Park

The best walks and hikes in Hemlock Overlook Regional Park

4.6

(94)

736

hikers

15

hikes

Hikes in Hemlock Overlook Regional Park explore a 400-acre landscape of dense, mature forest and rolling woodlands. The park's terrain is characterized by its location along the Bull Run, with trails following the river's floodplain and winding through stands of old-growth trees. The routes consist of well-marked dirt and gravel paths with some gentle ascents.

Best hiking trails in Hemlock Overlook Regional Park

  • The most popular hiking route is Union Mills Trail & Bull Run Occoquan Trail loop — Hemlock Overlook Regional Park, a 3.1 mile (5.0 km) trail that takes about 1 hour 20 minutes to complete. This route combines a woodland path with a scenic segment along the Bull Run.
  • Another top favourite among local hiking enthusiasts is Hiking loop from Lake Occoquan Shores, a moderate 10.2 mile (16.4 km) path. This longer hike connects to the broader Bull Run Occoquan Trail system.
  • Local hiking enthusiasts also love the Union Mills Trail Loop — Hemlock Overlook Regional Park, a 2.9 mile (4.6 km) trail leading through the park's forest, often completed in about 1 hour 15 minutes.
  • Hiking in Hemlock Overlook Regional Park is defined by riverside paths, mature forests, and rolling Piedmont hills. The trail network provides options for both short, easy walks and longer, more moderate hikes.
  • The routes in Hemlock Overlook Regional Park are highly rated by the komoot community with an average score of 4.7 stars from more than 70 reviews. More than 500 hikers have used komoot to explore Hemlock Overlook Regional Park's varied terrain.

Last updated: May 12, 2026

5

hikers

#1.

Hemlock Overlook via Bull Run Occoquan Trail

7.93km

02:09

110m

110m

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

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Moderate

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

Easy
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4.5

(4)

33

hikers

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

Easy

4.5

(4)

32

hikers

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

Easy

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

Moderate
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Popular around Hemlock Overlook Regional Park

Cycling in Hemlock Overlook Regional Park

MTB Trails in Hemlock Overlook Regional Park

Running Trails in Hemlock Overlook Regional Park

Road Cycling Routes in Hemlock Overlook Regional Park

Tips from the Community

Matthew
January 24, 2024, Hemlock Overlook Regional Park

Hemlock Overlook Regional Park is a hilly 400-acre park in Virginia. A lot of the views and historical features are found along the hiking trails, which are a mixture of paved paths and singletrack trails.

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This scenic section of the Bull Run Occoquan Trail runs through Hemlock Overlook Regional Park and connects to some of the other trails in the park's network. There is a pretty cool view from the remains of the old dam at the southern end of this trail section.

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Hemlock Overlook Regional Park is a hilly 400-acre park in Virginia. A lot of the views and historical features are found along the hiking trails, which are a mixture of paved paths and singletrack trails.

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Hemlock Overlook Regional Park is a hilly 400-acre park in Virginia. A lot of the views and historical features are found along the hiking trails, but there are a couple paved roads worth biking if you are near the park.

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Hiking on the Hemlock Overlook Regional Park trails means walking through wooded areas and alongside the course of the river: a beautiful experience!

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The park includes hills, dense forests and a stream that flows into the Potomac River. In this park the Bull Run-Occoquan Trail begins and continues along Hemlock Overlook Regional Park and ends at Bull Run Regional Park.

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Frequently Asked Questions

Are dogs allowed in Hemlock Overlook Regional Park?

Yes, dogs are welcome in Hemlock Overlook Regional Park but must be kept on a leash at all times. The park's woodland and riverside paths are great for exploring with your canine companion.

Where can I park for hikes in Hemlock Overlook Regional Park?

The main parking area is located at the park entrance near the outdoor education center at 13220 Yates Ford Rd, Clifton, VA. This lot provides direct access to the trailheads for the main network of paths.

Are there easy, family-friendly hikes in the park?

Yes, the park offers several easier trails suitable for families. A good option is the Hemlock Pond loop from Lake Occoquan Shores, a relatively short and gentle walk. The trails are generally well-marked dirt paths, making them accessible for most ages.

How long are the hikes at Hemlock Overlook?

Hikes range from shorter loops of around 3 miles (5 km), which typically take about 1.5 hours, to more extensive routes over 10 miles (16 km) that can take several hours. The park connects to the much longer Bull Run Occoquan Trail for those seeking an all-day adventure.

Can I see any historical ruins from the trails?

Yes, you can discover historical sites while hiking. Along the Bull Run, you can find the stone ruins of Fairfax County's first hydroelectric dam. The area also holds significance from the Civil War, with remnants of Union Mills and a former railroad crossing nearby.

What kind of wildlife might I see in the park?

The park is a rich habitat for various species. Keep an eye out for white-tailed deer in the woodlands, a variety of woodpeckers and forest songbirds in the canopy, and butterflies like the Eastern Tiger Swallowtail near the river. The park is also a designated site on the Virginia Bird and Wildlife Trail.

When is the best time to see wildflowers?

Spring is a fantastic time to visit for wildflowers. The forest floor is often carpeted with Virginia bluebells, particularly in the floodplain areas along the Bull Run. Later in the spring and into early summer, you can also see the beautiful blooms of mountain laurel throughout the park's understory.

What are the trail conditions like at Hemlock Overlook?

The trails are primarily well-maintained dirt and gravel paths. Some sections, especially those closer to the Bull Run, can be rocky and have exposed roots. After heavy rain, the low-lying trails near the river may become muddy, so appropriate footwear is recommended.

Are most of the trails circular loops?

The park features a mix of trail types. There are several popular circular loops that start and end at the main parking area. Additionally, the park's trails connect to the linear Bull Run Occoquan Trail, allowing for longer out-and-back hikes or point-to-point adventures if you arrange transportation.

Is there anything to do nearby after a hike?

Yes, the Paradise Springs Winery is located very close to the park and is a popular spot for visitors to relax after their hike. The charming town of Clifton is also just a short drive away and offers several options for food and drink.

What do other hikers enjoy about Hemlock Overlook Regional Park?

The park is highly regarded by the komoot community. Hikers frequently praise the serene atmosphere of the mature, old-growth forest and the scenic beauty of the trails along the Bull Run. The well-marked path system and the mix of easy and moderate terrain are also commonly highlighted.

How many hiking trails are there in Hemlock Overlook Regional Park?

There are over 10 designated hiking routes within Hemlock Overlook Regional Park and connecting to the surrounding area. These range from short, family-friendly loops to more challenging sections of the regional trail network, offering plenty of options for different skill levels.

Most popular routes in Hemlock Overlook Regional Park

Easy hikes in Hemlock Overlook Regional Park

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