Devon Island is located in the Territory of Nunavut in Canada. Devon Island is the largest uninhabited island on Earth, with a surface area of approximately 66,800 km2. Its geology presents two major provinces: a thick subhorizontal sequence of Paleozoic marine sedimentary rocks dominated by carbonates forming part of the Arctic Platform; and a Precambrian crystalline basement lying unconformably under the stack of marine sediments, forming part of the Canadian Shield.