Complex sentence: The Upper Plym Valley is an area of Dartmoor, Devon, England, particularly noted for a large array of archaeological sites rnging from prehistoric Drizzlecombe to 19th century Eylesbarrow Mine.
Split into simpler sentences: The Upper Plym Valley is an area of Dartmoor, Devon, England, particularly noted for a large array of archaeological sites. Ranging from prehistoric Drizzlecombe to 19th century Eylesbarrow Mine.