The Pennine Hills are a mountain range in northern England, often referred to as the "backbone of England." They stretch approximately 250 miles from Northumberland in the north to Derbyshire in the south. The hills are characterized by rugged terrain, deep valleys, and scenic landscapes, making them a popular destination for hikers and nature enthusiasts. The Pennines are home to several national parks, including Yorkshire Dales and Peak District, which showcase diverse wildlife and unique geological features. The region also has a rich cultural history, with many towns and villages that reflect the heritage of the area, including traditional industries like wool production.