Explore the most popular trails in McConnells Mill State Park with hand-curated trail maps and driving directions as well as detailed reviews and photos from hikers, campers and nature lovers like you.

McConnells Mill State Park, in Lawrence County, encompasses 2,546 acres of the spectacular Slippery Rock Creek Gorge. Created by the draining of glacial lakes thousands of years ago, the gorge has steeps sides and the valley floor is littered with huge boulders and is a national natural landmark. A gristmill built in the 1800s is open for tours. The park is open from sunrise to sunset, year-round.

Did the complete trail out & back in 8 hrs carrying 45 lbs of gear in 14°. Definitely the hardest trail I've done with a full pack. It's exactly 8 miles one way including the Hells Hollow Falls trail. Very scenic with lots of water features. Very well marked & maintained.

hiking
rocky
snow
1 month ago

Beautiful as ever but a bit icy. Would recommend crampons.

Hiked this out and back in two sections.

Day #1 - Started at Mcconells Mill and hiked to about a mile past Walnut Flats and back. The steady rain made footing pretty tricky but it was a challenge with some amazing views. Total - 10.5 miles

Day #2 - Started from Hell’s Hollow and hiked just short of Walnut Flats and back. On way back to car we took the Hells Hollow falls trail which was beautiful. Total - 7.5 miles.

Overall the trail was challenging and had lots of stream crossings, rocky terrain and some sizable elevation. A must if your in the area.

walking
3 months ago

Short trail, to easy. Loved seeing the waterfall.

hiking
3 months ago

easy trail, very flat. beautiful year round

Walked the loop this morning. Some places are a bit of a challenge but, enjoyed every step.

backpacking
3 months ago

Favorite place to hike!

walking
3 months ago

This trail is nice if you want to appreciate the foliage or water. The trail is lower in the mountains, so don’t expect a scenic overlook, but the stream next to it provides beautiful rock formations in blue-green water. At a fast pace, you’ll feel tuckered out by the end!

awesome trail, beautiful views. definitely not a beginner hiker's best option. some of the hill climbs are steep, but the trail is well marked and very easy to follow. we took our time & it was about a 4-1/2 hour hike from hells hollow falls to the covered bridge at mcconnels mill. also, we didnt see ANY litter along the whole hike, not did we see many people!

3 months ago

So far my favorite place in PA!!

Beautiful trail.

Loved it.
Cant wait to go back again.
My 8 yr old grandsons first hike. He had a Great time

hiking
4 months ago

hiking
4 months ago

Fantastic scenic trail! Walking along the river with the sounds and sights of the white water rapids and seeing some kayakers was terrific. Very pretty scenery with bridges and waterfalls and large rock formations - plenty to see! Not as hilly as I expected (definitely some hills in certain areas just expected more) but be careful on this trail as it lives up to its name "Slippery Rock" and it is very easy to fall on rocks if you aren't focusing on your steps. Did it with my 12 year old son and he loved it. We do a lot of hiking and this is the most scenic and challenging trail (in terms of terrain) we have done to-date. Bring plenty of water and bug spray! Highly recommend this trail but just stay focused and be cautious!

Easy hike for families until you reach the falls. Steep stairs but there are hand rails.

hiking
5 months ago

If somebody asked me “what is the best first trail for me to hike near Pittsburgh?”, I would say “Kildoo Trail”. This is a great length; it requires you to work hard, but it’s not overwhelming; and the scenery is BEAUTIFUL. The terrain is steep, but manageable. Definitely wear boots and take water. And on nice days, be ready to share the trail with others ‘cause it gets CROWDED. But it is a beautiful hike that you will love!

5 months ago

So many nice little spots to relax by the little river.

Lots of wildlife, Flowers, beautiful boulders, waterfalls, covered bridge and a working Old Mill. Good hike a little rocky and muddy in spots. Probably my Favorite trails in Pennsylvania

Short Video of some of the Trail
https://youtu.be/EGrshck_ArM

Hiked this trail over the weekend. Started at Hells Hollow and went to Eckert Bridge and back. It was definitely a challenging trail with a lot of rocks and roots. Make sure your ankles are supported if that is a common issue for you. Took a bit of time off trail and stopped to eat. Took us about 7 hrs for two out of shape wandering types. The trail was well marked and at no time did I feel like I was in danger. There were some muddy parts and fallen trees to climb over but we felt like it made things more interesting. Walnut Flats is a nice relaxing walk after the big inclines. The rocks are definitely slippery so the trail is true to name. We drove from Cleveland to hike this trail and it was absolutely worth it. I only wish I had the energy to make it down Kildoo trail as well. Will definitely check it out again.

This trail is awesome!

it was very nice

i like the trail it was hard but it was worth it i plan on going back soon

Completed 7/8/18

This was my second attempt at this trail, the first being a year ago when I moved to PGH. It was definitely easier than before, but the rolling climbs are harder than expected! Total, the out and back took 6.5 hours with a considerable rest stop at the Mill. Our pace was brisk, so make sure you're physically ready to complete this trail. The portion near Eckhart Bridge is really beautiful - save time for photo stops if that's your thing.

4.5/5

walking
6 months ago

We walked the entire length of the trail about back, which was about 15 miles. The foot traffic near the falls was pretty heavy, but along the trail we only ran into a few people. Very much enjoyed the walk.

hiking
7 months ago

Beautiful. Beautiful. Beautiful. During our trip the trees provided a wonderful canopy from the rain and the hot summer sun for most of it. Great trail with some exciting challenges throughout.

Always lookimg for giys to gike sround new castld with

hiking
7 months ago

Just hiked this today with my dog (4 month old lab). He loved it just as much as I did. Definitely recommend this trail for someone who’s looking for a beautiful hike with a slight challenge to it. One of the best in the area in my opinion!

Another beautiful trail in the park. Easier hike than the alpha pass trail. Waterfall is a nice payoff at the end.

hiking
7 months ago

Great trail, kids and dog loved it. Lots of rocks and tree roots to look out for, so I’d call this closer to moderate for less experienced hikers.

It's one of the prettiest trails I've been on in a long time. Covered bridge AND a waterfall. HOWEVER, it is NOT an easy tail, as it is rated in the app. Lots of rocks and roots, and because of its proximity to the river, the rocks and roots were wet and slippery. I'm 68 and was able to manage it, but if you have joint problems, be aware!

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