While forests ... of pine trees has changed more than any others, increasing drastically in some spots and decreasing sharply in other places. The team relied on a database at maps and notes ...

becomes the 37th site in Pennsylvania to join the Old-Growth Forest Network. This 368-acre park, located on the west rim of Pine Creek Gorge, also known as the Pennsylvania Grand Canyon ...

The small tract of forest – part of the 1,526-acre Sweet Root Natural Area in Buchanan State Forest near Chaneysville – is the 19th Pennsylvania ... oak and oak-hard pine stands.