Geodetic Survey

The VTrans Survey Unit manages the Vermont Continuously Operating Reference Station (CORS) Network. This service provides Global Navigation Satellite System (GNSS) data and supports three-dimensional positioning. The VT CORS Network is a free service utilized by State and Federal Agencies, Surveyors, GIS users, Engineers, Scientists, and the public at large. 

If you would like to search for horizontal or vertical survey marks in VT, please visit the Vermont Online Geodetic Information System (VOLGIS).​

Contact Us

VT CORS Network Administrators
AOT.GeodeticInfo@vermont.gov