From the monthly archives: June 2017
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Geodetic control points are stamped with a variety of different markings and symbols to help surveyors identify them in the field.
Center marks, the simple symbols in the middle of a monument cap, indicate whether a monument is a vertical control point marking a precise elevation (commonly referred to as a bench mark), a horizontal control point established at a known latitude and longitude (commonly referred to as a station or mark), a reference marker, or something else entirely.
We’ve highlighted the various types of control points along with their corresponding marks and symbols for handy reference below.
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