Linn Run State Park

Grove Run and Rock Run are two small streams in Pennsylvania's Westmoreland County. When they join, they form Linn Run, an excellent trout stream and the key attraction in the 612-acre Linn Run State Park.

Linn Run features a beautiful waterfall, Adam Falls, which is well worth visiting for a photo or two. There's a picnic area nearby where you'll find picnic tables, drinking water, playgrounds, and restrooms, making it the ideal spot to stop off for a bite to eat.

But there are plenty of other recreational activities to enjoy in the park other than picnicking and fishing. Horseback riding is permitted along Linn Run Road, snowmobiling is popular in the area during the winter months, and there are more than six miles of hiking trails to explore. The one-mile Adam Falls Trail, which takes you across rocky terrain to take in some spectacular waterfall views, is a favorite with many visitors.

And if your visit to the area gives you a taste for outdoor adventure, you'll find plenty more terrain to explore in the 58,500-acre Forbes State Forest, which adjoins Linn Run State Park. Many of Linn Run's hiking trails actually link up with those in the state forest, so it's possible to go well beyond the boundaries of this smaller park and broaden your horizons.

Dogs are welcome in Linn Run State Park provided that they're kept on a leash of six feet or less and remain under your control at all times. You'll also need to clean up after your pet, follow all other signposted rules, and be respectful of other park users.

If you're planning on staying the night, Linn Run State Park features one modern cabin and nine rustic cabins. Two of those rustic cabins are pet-friendly so you can enjoy a weekend (or even longer) away with your canine pal.