Figure 4.-Mosaic of U.S. Army Air Force vertical aerial photographs of the Northwall Firn in 1942.

U.S. Geological Survey, U.S.Department of the Interior
This page is https://pubs.usgs.gov/prof/p1386h/indonesia/indonesia.html
Contact: Richard S. Williams, Jr., and Jane G. Ferrigno
Last modified 05.04.00