If you live in Pittsburgh or are just visiting the area, McConnells Mill is one of the best day…read moretrips around. It's only about 40 miles north up I-79, so it's an easy drive from the city, but it feels like a completely different world once you get down into the gorge. I've been going there for years with friends and family, and it became my go-to spot to take people when they would visit from out of town. Everyone always loves checking out the historic old gristmill and the red covered bridge right next to it. It's a great, classic view, and if you go during the summer, they usually open up the mill for tours so you can see how it all used to work. The hiking there is fantastic, too, with a good mix of trails depending on what you're up for. You can take a pretty easy walk back to Hell's Hollow Falls, or you can tackle the rougher, rockier trails that run right along Slippery Rock Creek. You definitely want to wear sturdy shoes because the terrain gets steep and the rocks get slick, but the scenery with the rushing whitewater and massive boulders is totally worth it. It's just a beautiful, simple place to get outdoors for a few hours. Whether you want a challenging hike or just want to sit by the water and look at the old bridge, it never disappoints.