Complex sentence: This lake is located 4 miles north of Lake Musquanousse which discharges into the river Musquanousse whose mouth is 8 km east of the mouth of the river Musquaro.
Split into simpler sentences: This lake is north of Lake Musquanousse, which discharges into the river Musquanousse. The mouth of that river is east of the mouth of the river Musquaro.