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Cartography and Mapping Hub is for Land Surveyors United members who specialize in cartography related practices and mapping. Share your discussions and resources here.

Student Surveyor

How to map topography under Trees?

Hi All, I'm a university student and GIS specialist and definitely NOT an experienced surveyor.  My research project uses drone imagery to map snow surfaces and is attempting to measure show depths.  We need to validate the the snow surfaces in forested environments, and of course, our GNSS base station and RTK rover setup do not work under canopy.  I need some advice on the equipment and training necessesary to overcome this issue.  I picture getting checkpoints (3d coordinates of the snow…

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Survey Legend

Geodaesia; The Art of Surveying and Measuring Land 1792

Sometimes it is just fun to go back in time. For example, take a look at this book from 1792 by John Love entitled Geodaesia: The Art of Surveying and Measuring Made Easy. Geodaesia: or, The art of surveying and measuring land made easy. Shewing by plain and practical rules, to survey, protract, cast up, reduce or divide any piece of land whatsoever; with new tables for the ease of the surveyor in reducing the measure of land. Moreover a more facile and sure way of surveying by the chain, than…

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Have you tried this USGS Topo overlay and other tools in this kmz file?

See the kmz file and open it to Google Earth and play with it.  Turn it on and watch it build a USGS Topo overlay with the "USGS Topo Map Overlays" submenu selected....... On rare occasions when the USGS server is down you will get a big red X - try again later - this day was one of them,otherwise I would have attached a sample jpg screen shot of my place with the overlay working instead of the X.  Please visit my website at for other related subjects. Google Earth streams…

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