The Parry Channel is a natural waterway through the central Canadian Arctic Archipelago. Its eastern two-thirds lies in the territory of Nunavut, while its western third (west of 110° West) lies in the Northwest Territories. It runs east to west, connecting Baffin Bay in the east with the Beaufort Sea in the west. Its eastern end is the only practical entrance to the northwest passage. Its western end would be a natural exit from the archipelago were it not filled with ice.