The prototype 3-D image of the seafloor developed by Heezen and Tharp

The prototype 3-D image of the seafloor developed by Heezen and Tharp. Note the similarity to the Veatch and Smith map in image map00125. The Veatch and Smith map had been produced as a 3-D relief model by the Braund Reliefograph, a machine developed within the C&GS to produce relief models for WWII bombardiers and pilots.

Photo Location: Atlantic Ocean, Northwest