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County GIS staff describe remonumentation project to improve property‑corner accuracy
Summary
Eaton County GIS staff updated commissioners on a multi‑year remonumentation program to reestablish Public Land Survey System control corners with modern survey equipment and to publish a public mapping application showing progress and precise coordinates.
John Merrick, Eaton County GIS coordinator, and Ivan Christopher, GIS administrator, gave a technical briefing on Feb. 14 about the county's Public Land Survey System (PLSS) remonumentation program and a public mapping application that displays the county's work.
The presentation explained why PLSS control corners matter for property boundaries, drains, emergency response and other county services. "Before you can determine who owns what part of the land, you have to agree on what the dividing lines are," Merrick said, describing the PLSS origin in the 1785 Land Ordinance and the role of section corners and quarter‑corners in modern cadastral data.
Merrick said the county's effort collects survey‑grade GPS coordinates on control monuments and records standardized coordinate…
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