Timothy has written about personal finance, including detailed home renovation and repair cost guides, since 2017. His work covers everything from plumbing and roofing to solar and pest control. Find ...

This column will address why users will be required to perform GNSS occupations when submitting a leveling project to the National Geodetic Survey (NGS) after 2022. It will highlight a section of NGS ...

THIS volume fills a gap that has been long felt in consequence of the great dearth of good books treating of instruments used for surveying and levelling. Various books and pamphlets contain ...