Heard about NATRF2022 and NAPGD2022? What about IGLD (2020) and the LWD?

A possible redefinition of the Low Water Datum for the Great Lakes will have impacts that go beyond just updating maps and charts.

Professor Alan Vonderohe’s book on the new 2022 datums is now available

In 2022 the National Geodetic Survey (NGS) will replace NAD 83 and NAVD 88 with new horizontal and vertical reference systems known as the North American Terrestrial Reference Frame of 2022 (NATRF2022) and the North …

WSRS2022: The Wisconsin Spatial Reference System 2022 Task Force

The PLSS Workgroup was formed by individuals and organizations in Wisconsin to advocate and advance the purpose and importance of the Public Land Survey System. Our goal is to educate and encourage State, County and Municipal agencies in improving, advancing and maintaining the Public Land Survey System statewide.

WI-SDMS Translator

Software packages available to convert and transform coordinate reference systems.

Wisconsin Coordinate Reference Systems, Second Edition

This handbook is a technical guide and resource for those who work with geospatial information in Wisconsin. It provides a brief overview of the history, evolution, and basics of Wisconsin’s coordinate reference systems, and compiles in one place the technical specifications for systems most commonly used in the state.

Coordinate Reference Systems

Coordinate systems are used to accurately identify locations on the Earth’s surface, and are one of the fundamental building blocks that make modern Geographic Information Systems possible. This pages contains more information on coordinate reference systems commonly used in Wisconsin.

Report on plans for a new national spatial reference system now available

The National Geodetic Survey has announce that the final “Report from the 2015 Geospatial Summit on Improving the National Spatial Reference System” is now available.

Information available on new geodetic datums to replace NAD 83 and NAVD 88 in 2022

The National Geodetic Survey (NGS) has released presentations and webinar videos about the planned 2022 release of the new geodetic datums.

Clarification on new NGS geoid model

Implementing the new “GEOID12A” model is not necessary in the continental U.S.

WI-HMP and WISCORS updates

Progress continues, despite some setbacks, towards the completion of the WI-HMP and WISCORS networks.