+DyverDown Posted April 21, 2014 Share Posted April 21, 2014 (edited) Any help identifying this marker: DyverDown My photo Edited April 21, 2014 by DyverDown Quote Link to comment
TillaMurphs Posted April 21, 2014 Share Posted April 21, 2014 Is that on the Canadian side? Quote Link to comment
+Revent Posted April 21, 2014 Share Posted April 21, 2014 (edited) Any help identifying this marker: DyverDown My photo This benchmark doesn't seem to be listed in the NGS database, from what I can tell. It 'should' (I think) be part of one of the 'Great Lakes Low Water Datums' listed here... http://tidesandcurrents.noaa.gov/gldatums.html probably station #9063020, but the data sheets for the Great Lakes stations don't seem to be available online. The homepage for that station is here... http://www.tidesandcurrents.noaa.gov/stationhome.html?id=9063020 but again, no benchmark information. I'd suggest contacting them at co-ops.userservices@noaa.gov I should 'disclaim' that this is just what I was able to hunt up and is kinda guesswork, but the peeps at that email address should be able to give a definitive answer. (edit) Just as an additional note, the 7.5x7.5 USGS topo maps for that area haven't been updated since 1965, so that line is a dead end. The 'new' digital US Topo versions don't show benchmarks. Edited April 21, 2014 by revent Quote Link to comment
+Revent Posted April 21, 2014 Share Posted April 21, 2014 Is that on the Canadian side? The location indicated on his GPS is the center of this Google Map... https://www.google.com/maps/@42.8992167,-78.9187,21z Quote Link to comment
+DyverDown Posted April 22, 2014 Author Share Posted April 22, 2014 Yes, it is on the Canadian side.... which is why I was so intrigued.... DD Quote Link to comment
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