Documents Tools to help complete “Height Mod” Surveys OPUS & OPUS Projects Joe Evjen, Geodesist, NGS...

Tools to help complete “Height Mod” Surveys   OPUS & OPUS Projects Joe Evjen, Geodesist, NGS  Height Modernization Eastern States Regional Tuesday, March…

Documents Tools to help complete “Height Mod” Surveys   OPUS & OPUS Projects

Tools to help complete “Height Mod” Surveys   OPUS & OPUS Projects Joe Evjen, Geodesist, NGS  Height Modernization Eastern States Regional Tuesday, March…