First C&GS; electronic base line measurements.Base crossings by aircraft and ship over Shoran network.Minimum value from two range-range stations gives distance.Base line party of P. C. Doran
3/18/2019 2:18:34 PM
Date: 1951
Credit: C&GS; Season's Report Doran 1951-84
Location: Alaska, Bering Sea
Subject: Geodesy
Subject: Triangulation
Subject: Baseline
Subject: Electronic