[2] The assumed existence of this channel and other errors in Peary's maps reportedly caused the tragic loss of the leading team of the Denmark expedition to Greenland's Northeast Coast 1906–1908.

[3] Robert Peary based his mapping of the area on observations he made in 1892 from Navy Cliff, located north of the Academy Glacier.

[1] In the wake of the tragic outcome of the Denmark expedition's main team, many scholars were highly critical of Peary's cartographic errors, but Lauge Koch, who made detailed surveys of the area in the 1920s and 30s, took a more lenient view: I would emphasize the high quality of Peary's sketch map, and the justification of his assumption of the insularity of the land he discovered — land which now properly bears his name.

[5]In 1907 Ludvig Mylius-Erichsen (1872–1907), the ill-fated leader of the Denmark expedition, searched in vain for the Peary Channel and was misled to his death by existing maps.

[7]Finally Knud Rasmussen, during his First Thule Expedition, also realized in 1912 that Peary Land is a peninsula and corrections were made in the maps of northernmost Greenland printed after that date.