From: cnite51@aol.com Message-ID: <c22.45b6fa52.35f941c5@aol.com> Date: Wed, 10 Sep 2008 11:29:09 EDT Subject: Re: Plumb-Bobs to GPS at the Washington County Historical Society
The boundaries of a township are not physical--no tree, or rock, or river,
like when George Washington did his surveying. It all comes from the Land
Survey Grid System (LSGS), which was created many years ago. The LSGS used a
Meridian and Base Line. For most states, they don't have their own, and go off of
the National one, but Michigan has its own set. I used to work on a survey
crew. However, like all surveys, the markers are buried, and you need a survey
description to know where to look. They even buried under roads, and you'll
see evidence if they've been recently accessed (about a 4-6 inch hole in
asphalt, etc. to be able to set up a target over it). Calling and talking with the
speakers at the Washington County event would be able to give you more
specific info--dates when LSGS, etc.
Carolyn Knight
_cnite51@aol.com_ (mailto:cnite51@aol.com)
920-485-0668
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