Over 16 hours of instructional videos to help you prepare for the state-specific exam.
Help improve the National Spatial Reference System (NSRS) by participating in the GPS on Bench Marks (GPS on BM) campaign. Your efforts will support the following objectives:
Improve the next hybrid geoid model, GEOID18
Improve the 2022 Transformation Tool , which will enable conversions to the new vertical datum in 2022 and be integrated into the NGS Coordinate Conversion and Transformation Tool (NCAT); and
Help the local surveying community.
Regardless of your objective, GPS on BM will always include three important steps: recover, observe, and report.
Recover: Look up the description of an existing bench mark and visit the bench mark of your choice.
Observe: Record field notes, take digital photos, and collect GPS observations or coordinates for the bench mark you visit.
Report: Use online tools to send the information to NGS.
Click here to download a listing of prioritized marks has been generated and is downloadable in various formats (.xls; .kmz; and .shp).
You can submit data at anytime, but keep in mind data to support GEOID18 must be submitted by August 2018