 Other main islands in the 1,500–island archipelago are Moore Island, Wiegand Island, Split Island, Snape Island and Mavor Island, while island groups include the Sleeper Islands, King George Islands, and Bakers Dozen Islands.Before 1914, English-speaking cartographers knew very little about the Belcher Islands, which they showed on maps as specks, much smaller than their true extent.In that year a map showing them, drawn by George Weetaltuk, came into the hands of Robert Flaherty, and cartographers began to represent them more accurately.