Darnley Bay is a large inlet in the Northwest Territories, Canada. It is a southern arm of the Amundsen Gulf. The bay measures 45 km (28 mi) long, and 32 km (20 mi) wide at its mouth.[2]
The Parry Peninsula is to the west and Halcro Point is to the east. The Canadian Shield originates east of Darnley Bay, the terrain sloping upwards, and characterized by glacial deposits.[3]