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 Projections and datum
 Survey map won't calibrate
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AgilePhil

USA
1 Posts

Posted - 05/04/2020 :  09:57:43  Show Profile  Reply with Quote
I have a Surveyor's plot map from about 1963. It is no more than about 2k feet on a side. I have tried to calibrate it with five known GPS points from a survey on it's North side that has two small bends in it, otherwise it is pretty much a straight line. Despite my efforts, the calibration comes out way off and to my surprise, it even gets North wrong. If I could overlay a Google satellite map on it, I could work out a few more points.

Any ideas?

okmap

Italy
2261 Posts

Posted - 05/04/2020 :  13:13:01  Show Profile  Visit okmap's Homepage  Reply with Quote
Please send me the map (image + okm file) to info@okmap.org
Tell me info you know about map projection.
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