The northeastern section of Dartmoor National Park appears to me as an old crater with a 12-mile diameter rim. River Dart runs along the south, and River Teign runs along the north. A few reservoirs appear just inside to the east and west, and the River Bovey seems to have eroded the southeast part of the rim — maybe the crater had partially filled with water and burst the rim there. The "crater rim" is most obvious to me at the 2-mile scale in Google maps with the terrain feature activated. I googled "Dartmoor National Park" crater and "Dartmoor National Park" volcano, but found nothing. Does anyone else "see" it?
