Benchmarks from Harris, Montgomery, Walker Counties, Texas Posted on March 18, 2020 by Zhanna Thanks to Will Awalt of Jones|Carter, we have some new benchmark data for Texas!
Bud Coffee Field and Hangar #1 in Modesto, California Posted on November 5, 2017 by Zhanna Gene Gomes has contributed diagrams of Hangar #1 and the former Bud Coffee Field in Modesto, CA!
Pre-NGS Survey Data Sheets—Now with Images! Posted on February 6, 2017 by Zhanna Harold Nelson of MaineDOT has sent along old horizontal control datasheets from Hancock County, Maine—they contain diagrams!
Maine Geodetic Survey Stations, 1933-1935 Posted on January 20, 2017 by Zhanna From Harold Nelson of MaineDOT comes a survey report and station descriptions from a 1930s survey of Maine.
Maintenance of Airway Beacon Facilities: 1962 Manual Posted on January 16, 2017 by Zhanna Learn about the characteristics, operation and maintenance of airway beacon facilities, from the early acetylene-powered beacons to the familiar Crouse-Hinds DCB-36 beacons!
NGS Historical Geodetic Control Diagrams Available Posted on March 21, 2016 by Zhanna Historical geodetic control diagrams and indexes, which were once available on an FTP site hosted by NGS, are now available here.