Comparison between tent camps and trailer camps.An overnight innovation - trailers became the only way to go in 1935.Triangulation party of Carl I. Aslakson
3/20/2019 8:55:51 AM
Date: April 1934 to May 1935
Credit: Captain Ray Tryon, C&GS;
Subject: Geodesy
Subject: Camping Out
Subject: Tryon