Historical Photographs: Setting a Triangulation Station

circa early 1960s Setting a triangulation station with a brass marker (also referred to as a tablet). Additional brass markers are visible beside the field crewman's boot. A tripod in the background is covered with fluorescent material so it can be easily spotted by a crew on another peak. High Resolution Print Version (PDF) 3.37 MB High Resolution Download File (TIF) 5.89 MB