An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the
United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
To the seamen of the 18th century who skirted its ice-choked seas in their wooden vessels, Antarctica was known as "Terra Australis Incognito" - the unknown land of the south.
Suggested Citation
Ford, A.B., and Schmidt, D.L., 1978, The Antarctic and its geology: General Information Product, 8 p. (15 columns), https://doi.org/10.3133/70039183.