Ladybower Dam is a large reservoir located in the Peak District National Park in England. Completed in 1945, it was built to supply water to the cities of Sheffield and Derby. The dam is known for its distinctive design and beautiful surroundings, making it a popular spot for visitors. The reservoir is surrounded by scenic hills and offers various recreational activities, including walking, cycling, and fishing. The iconic Ladybower Reservoir features a unique overflow system, often referred to as the "plugholes," which adds to its visual appeal.