Scale approximately 1:145,000 (W 84°51ʹ38ʺ--W 84°22ʹ11ʺ/N 45°12ʹ07ʺ--N 44°51ʹ21ʺ). Scale approximately 1:140,000 (W 84°51ʹ12ʺ--W 84°22ʹ22ʺ/N 44°51ʹ28ʺ--N 44°30ʹ26ʺ). Scale not given (W 84°41ʹ59ʺ--W 84°39ʹ43ʺ/N 45°02ʹ42ʺ--N 45°00ʹ04ʺ). Scale not given (W 84°43ʹ24ʺ--W 84°41ʹ56ʺ/N 44°40ʹ27ʺ--N 44°38ʹ47ʺ).