This monument was found along the Fox River near Green Bay WI. Has anyone ever come across a USM concrete monument?
Two similarly named points, USM 277 and 329, were first reported by the US Lake Survey.
Mineral survey??ÿ
The ones Melita mentioned are
https://www.ngs.noaa.gov/cgi-bin/ds_mark.prl?PidBox=PN0633
This one is behind a fence at a CofE site and recovered in 2005 by the WI DOT.
and
https://www.ngs.noaa.gov/cgi-bin/ds_mark.prl?PidBox=PN0658
In 2006 a log on geocaching says their metal detector indicated something but they stopped digging at 8" and didn't see the mark.
I didn't see a data sheet for USM 269.
Thanks for the feedback. Besides for the data sheets, is there any other place that these monuments would be recorded? It is on private property, but should I contact an agency to reference it to those old lake surveys?