First Tellurometer traverse by C&GS.;Atka Island traverse.Party off of EXPLORER
3/18/2019 2:18:35 PM
Date: 1957
Credit: C&GS; Season's Report Kirsch 1957-86
Location: Alaska, Atka Island, Aleutian Islands
Subject: Geodesy
Subject: Triangulation
Subject: Baseline
Subject: Electronic