Longdendale is a valley located in the northern part of England, specifically in the county of Derbyshire. It is known for its scenic beauty, characterized by rolling hills and the Peak District National Park nearby. The valley is home to several small villages, including Hadfield and Glossop, which offer a glimpse into the region's rich history and culture. The area is also notable for its reservoirs, such as Bottoms Reservoir and Woodhead Reservoir, which provide water supply to surrounding regions. Longdendale has a variety of outdoor activities, making it a popular destination for hikers and nature enthusiasts.