Quaternary map of Greenland, 1:2 500 000, 1971

Sources of information:

Topographic base and surface contours of the Inland Ice compiled from maps of the Geodwtisk Institut, Kobenhavn, and from World Aeronautical Charts USAF, Washington D. C.

Inland Ice : Substratum of the Inland Ice compiled after published maps and data of the Expeditions Polaires Francaises, the British North Greenland Expedition and the US Army investigations (SIPRE, CRREL).

Ice-free coastal areas: Interpretation of aerial photographs of the Geodwtisk Institut, Kobenhavn, with ground control mainly from information published by (Meddelelser om Gronland>, L. Boyd Expeditions, US Army and Air Force Reports (SIPRE, CRREL, AFCRL) and the Ohio State University; unpublished material from the files of the Geological Survey of Greenland and from reports of the Technical Organisation of Greenland (Ministry for Greenland).

Submarine contours: Deep sea contours mainly from INQUA maps and data from Bedford Institute of Oceanography. Continental shelf area from Det kongelige Sokort-Arkiv (Royal Danish Hydrographic Office), Kobenhavn.