26 September, 2023

Spotted: More geodetic survey benchmarks

I found a couple more geodetic survey markers here in Madison.

This one, I have discovered, was used to calibrate equipment and I guess it's not a "proper" marker for survey work.


Now, this one, just west on the same retaining wall, is the real one.

These are on the retaining wall of the Campus Drive entrance ramp at Highland Avenue.

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