Pittsburgh Botanic Garden will host the Hearts in the Garden event Feb. 7-16. The event will add to the existing gardens with ...

The gigantic Yellowstone Grand Canyon, lined with volcanic rock. With all the effects of hydrothermal activity, river erosion ...

The county's position within the Allegheny Plateau provides dramatic landscapes, including the impressive Cumberland Narrows, a 1,000-foot deep gorge that has historically served as an essential ...