Bylot Island lies off the northern end of Baffin Island and with an area of , it is ranked 71st largest island in the world and Canada's 17th largest island. It is also one of the largest uninhabited islands in the world. While there are no permanent settlements on this Canadian Arctic island, Inuit from Pond Inlet and elsewhere regularly travel to Bylot Island. An Inuit seasonal hunting camp is located southwest of Cape Graham Moore. The Byam Martin Mountains extend from east to west across Bylot Island and are an extension of the Baffin Mountains which in turn form part of the Arctic Cordillera mountain system. The highest mountain in the range is Angilaaq Mountain, , located near the island's centre. The Byam Martin Mountains are made up of Archean-Aphebian igneous crystalline rock and Proterozoic metasedimentary and metamorphic rock, such as gneiss. Sharp peaks and ridges, divided by deep glacier-filled valleys are typical features in the range and has been extensively modified by glacial erosion. Extensive glaciers dot the island including the Kaparoqtalik Glacier. Vertical cliffs along the coastline are made up of Precambrian dolomite. The island's north shore faces Lancaster Sound, a polar bear maternity den area, also noted for its high concentrations of marine wildlife. To the northeast of the park is Baffin Bay and to the south lies Pond Inlet and Eclipse Sound.