The 11 Best Things to Do in McConnells Mill State Park for a Day of Free Adventures near Pittsburgh

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McConnells Mill State Park, located in western Pennsylvania just north of Pittsburgh, is a day-use park full of fun things to do. It’s one of our favorite state parks on the western side of the state for hiking and exploring!

We grew up within driving distance of this park, so we have the local insights!

This list will provide you with plenty of ideas and our favorite suggestions to fill a day visit with some of the best things to do in McConnells Mill State Park.

Where is McConnells Mill State Park?

McConnells Mill can be found in western Pennsylvania, about 40 minutes north of Pittsburgh. The park is easily accessed from I-79, just 5 minutes away. It’s one of the best state parks for hiking near Pittsburgh.

If traveling in the east-west direction across Pennsylvania across I-80, the park can be accessed by a 20-minute or 17-mile detour down State Route 19 South.

What to See on Your Visit

1. McConnells Mill and Dam

McConnells Mill and the red Covered Bridge is one of the best places to visit and one of the most photographed locations in the park.

A visit to McConnells Mill State Park is not complete without a visit to the namesake mill. If historic buildings are up your alley, this one is not to be missed.

Although tours of the mill only run during the summer months from Memorial Day to Labor Day, wandering around the outside of the structure, snapping a few photographs, and taking in views of the man-made mill falls make this stop worth adding to your itinerary.

2. Covered Bridge

The iconic red-covered bridge at McConnells Mill State Park stands out against the forest backdrop, with Slippery Rock Creek flowing vigorously below, a scene for visitors seeking picturesque hikes.

Situated right next to the mill, the covered bridge is included in many of the iconic photos of McConnells Mill. The bright red structure spans a distance of 96.5 feet over Slippery Rock Creek.

Originally built in 1874 and rehabilitated twice, it has been on the National Register of Historic Places since 1980. At the time of acceptance into the National Register, it was one of only four of its kind remaining in the state and the longest of the four.

The covered bridge can be a quick stop for a few photos and a walk across on the way to some of the other sights in the park.

3. Hells Hollow Falls

A serene cascade at McConnells Mill State Park, with a visitor and their dog by the water, exploring the natural beauty of Hells Hollow Falls.

For an easy hike with a big payoff, begin at the parking area of the same name. This parking area is on the opposite side of the park from the mill and covered bridge, but it’s worth checking out.

You’ll follow a well-marked and easy-to-maneuver trail. The trail covers about half of a mile of mostly flat terrain and travels along the creeks.

The end of the trail leads down a wooden staircase and literally ends with your feet in Hell Run at the base of the falls. Hells Hollow Falls is impressive and typically the largest waterfall by volume within this park.

While you’re at this waterfall, take a peek into the history of the area by taking a quick look at the Lime Kiln still located at the turn of the stairs down to the falls.

4. Breakneck Falls

You can see the bottom of the Breakneck Bridge, where some begin their hike to Breakneck Falls. We wouldn't recommend that.

Accessing Breakneck Falls doesn’t have to be quite as difficult as in the past when the falls really lived up to their name.

These falls are more hidden than Hells Hollow Falls, but three tiers twist and turn for their own spectacular sight. Either hop on this trail from the Killdoo Trail or access this as a short, less than one-mile side trip from the North Country/Slippery Rock Gorge Trail.

These falls didn’t disappoint, especially since we were alone during our entire visit to this particular spot in the park, passing no other hikers on this out-and-back trail.

5. Alpha Falls

Alpha Falls at McConnells Mill State Park partially frozen in winter, with ice formations complementing the cascading water, among wooded landscape.

Alpha Falls could be either the first or last point of interest you visit, as the parking area and short trail to the falls are both located conveniently right along McConnells Mill Road.

The hike is short but includes quite a few stairs and uneven terrain, so shouldn’t be considered for those with difficulty navigating these conditions.

The falls could also be accessed from any hike on the North Country Trail, especially if you are planning a long out-and-back trip through the park, as this would be your turnaround point.

Alpha Falls is seasonal, sourced from a tiny trickle that dries up in the summer, but is worth the trip when flowing. You can usually hear the flow from the top parking area when the waterfall is going well, so take a listen before you head down the trail.

6. Hike the Kildoo Trail

A rocky trail parallels the flowing Slippery Rock Creek in McConnells Mill State Park, inviting hikers to explore the rugged terrain and serene waterscapes along the path.

For the most bang for your buck… or your steps… include the Kildoo Trail in your hiking plans.

In addition to Breakneck and Alpha Falls, which can be accessed easily while hiking the Kildoo Trail, you will see Kildoo Falls, as well as several smaller unnamed falls along the trail.

Kildoo Falls can be seen under the Kildoo Bridge. You will know to look away from Slippery Rock Creek to see this waterfall when you cross a small wooden footbridge on the Kildoo Trail.

Icicles dangle beside a partially frozen Kildoo cascade at McConnells Mill State Park, with fallen logs and rocky terrain creating a picturesque winter hiking scene.

Along this trail, you’ll catch many glimpses of the running river opposite Slippery Rock Creek. The trail could be hiked out and back from the Covered Bridge. It covers about 3 miles roundtrip.

For alternative options, continue hiking on the opposite side of a portion of the Slippery Rock Gorge Trail. If you only have a couple of hours to spend in this State Park, we’d recommend this hike as a top option.

7. …or the Slippery Rock Gorge Trail

The Slippery Rock Gorge Trail at McConnells Mill State Park with an 'Emergency Use' sign and a lifebuoy attached to a tree, overlooking the rushing waters of Slippery Rock Creek.

To see the entirety of the park, hiking along the Slippery Rock Gorge Trail is a necessity. It’s the only way to see the middle of the park between Breakneck Falls and Hells Hollow Falls.

This trail actually covers a small portion of the much, much longer North Country Scenic Trail spanning eight states through the Great Lakes region.

Most of the route runs along Slippery Rock Creek for beautiful views of the whitewater and rocky banks. Covering just over six miles, be prepared to get quite a workout in with this trail.

A hiker carefully navigates a rocky and mossy trail at McConnells Mill State Park, surrounded by bare trees and a rugged terrain, showcasing the park's natural beauty and challenging hikes.

The elevation changes are quite noticeable over this rocky terrain.

Hiking this trail could be a great exercise in preparing for a longer or more strenuous backpacking trip while catching some of the best views in the park.

8. Grindstone Falls

A  winter scene at McConnells Mill State Park, where a partially frozen Grindstone Falls cascades among ice formations, surrounded by a forest of coniferous trees and a carpet of fallen leaves.

For a more off-the-beaten-path adventure, visit Grindstone Falls. You won’t find this one on any of the main trails or even on the park map.

You will find a small parking area, large enough for 3-4 cars, near the intersection of Nye and Mountville Road. A short hike downhill takes you to a single-drop waterfall 8-10 feet tall.

With the shallow pool at the bottom of the falls, you can walk right up next to the falling water. This waterfall is beautifully secluded and peaceful. We recommend a visit to those with a little more adventure in their spirit.

9. Cleland Rock Overlook

Expansive view from Cleland Rock overlook at McConnells Mill State Park, showcasing bare trees in a valley under a bright blue sky with scattered clouds in winter.

Honestly, if there was one point of interest on the map that I’d skip in McConnells Mill, this would be it.

I’m sure it’s a much more beautiful sight in the fall when the foliage is peaking. You do catch a glimpse of how significant the walls of the gorge are, but the bare trees don’t do much for the landscape in the photo. When the banks are lined with reds and oranges, that’s the time to visit this spot.

Other than that, there isn’t a ton to see, and the opening for viewing the gorge isn’t very big.

I wouldn’t recommend planning more than 10-15 minutes for this spot if you’d like to catch the views. There aren’t any hiking trails or other things to do here, either.

10. Get Adventurous by Whitewater Kayaking…

A serene winter scene at Slippery Rock Creek in McConnells Mill State Park, with kayakers taking a break on the calm waters before tackling another stretch of rapids.

For those experienced in these adrenaline-pumping adventures, McConnells Mill State Park is a great place to drop in and go on a whitewater kayaking adventure.

Trips here are not publicly run and there are no guide services, so you must be experienced and know how to navigate the creek. This trip would certainly not be for a group of beginners.

However, if you know someone or have the skills, this is a great place to explore the water.

11. …or Rock Climbing

The park is also known for its two separate rock climbing areas, Rim Road and Breakneck Bridge.

This adventure also should only be attempted with or by experienced climbers. As of now, there aren’t any public tours or companies taking you through this activity.

Plenty of climbers with experience do get out and tackle the climbs, though.

The Breakneck Bridge climbing area is more rugged and dangerous, so be prepared and take extra caution here.

…And What Not To Do

1. Swim in Slippery Rock Creek

This is not your typical babbling brook. Slippery Rock Creek is a dangerous whitewater creek destination. Many have simply washed away in the rough waters.

The currents in this creek are not to be underestimated.

If swimming in the area is on your list of things to do, be sure to head over to nearby beaches at Moraine State Park. Moraine is only about 5-6 miles away, about 10-15 minutes by car.

At Moraine, you will find two beaches covering 1,750 acres set aside for swimming on the large Lake Arthur.

2. Climb on icy or slippery rock formations

Again, heed the name.

In the winter and spring, the rocks are icy. Spring lasts much longer in the gorge than in the surrounding areas. You may find ice on some of the trails into June.

After the ice melts, rain and water can also make rocks quite slippery. Take caution not to lose your footing and be swallowed by the creek.

Unfortunately, this park has claimed its fair share of visitors.

3. Camp in the State Park

Even though the North Country Trail runs through the park, which is popular with thru-hikers, there is no camping within the state park boundaries.

Nearby camping in state parks can be found by continuing to Moraine State Park.

Also, private campground options are available, including Cooper’s Lake Campground, just across Route 422.

Although manmade, the Mill Dam is a beautiful accompaniment to the surrounding landscape, bridge and mill.

How Much Time Should You Plan to Visit McConnells Mill?

McConnells Mill is a day-use park, so there are no overnight options within the park.

A full day could definitely be spent exploring the park, though. If planning a weekend to explore other nearby areas, various options overnight can be found close by.

The Breakneck Campground, just up over the hill from the park (but not actually in the park), is a more primitive camping option with tent sites and rustic cabins. There are no hookups, and it is only open during the summer months. Pets are welcomed at the campsites but must be leashed and accompanied at all times. The campground is frequented by those enjoying the kayaking and rock climbing nearby.

Camping is also available in both nearby Moraine State Park and other private campgrounds. Hotel accommodations can be found by driving about 20 minutes in any direction.

Wrapping Up: Everything You Need to Know About the Best Things to do in McConnells Mill State Park

Here are a few final notes and things to know when planning your visit to McConnells Mill.

The area is pet-friendly, and leashed dogs are welcome on the trails. There were plenty of dogs accompanying their fur parents exploring the trails. Everyone will head home tired after a day spent exploring the park!

McConnells Mill is a beautiful spot to explore in western Pennsylvania, one that shouldn’t be missed! Spend the day taking in historic structures, stumbling on hidden waterfalls, and hiking beautiful trails.

Pack a picnic lunch so you don’t have to leave early! You’ll find plenty of great spots to stop and eat it. There aren’t many restaurants or dining options nearby to sneak out and get food, so you’ll want to bring your own.

For more western Pennsylvania waterfalls and outdoor adventures, head south to Ohiopyle State Park.

Which is your favorite spot to explore in McConnells Mill State Park?