A trigonometrical or triangulation point (Trigonometrischer Punkt/Triangulationspunkt) in my hometown, in front of the church.The pillar is made of natural stone, probably granite. As typical for this kind of monument, on the southern side it bears the inscription TP, on the southern side there is a triangle symbol. But this is partial covered by plants and the ground and hardly readable.Exactly below the pillar there is probably a sub-surface granite plate with a cross to mark the position even if the pillar gets misplaced or even lost. But of cause I didn't try to dig it out to know it for sure. ;-)These TPs have been quite important as reference points for surveys before GPS came into use. But now their importance declined and as far as I know their maintenance as been suspended in most states.
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Survey Photos by Tag or CategoryEarth's Largest Survey Photos Collection
Since 2007, Land Surveyors around the world have shared their best Surveying Photos from the field. Inside this collection you can transport yourself to virtually any location on Earth and see how Land Surveyors work, types of equipment being used and environmental challenges associates with being a land surveyor in that location.
Location Based Chapter Hubs also have photos specific to the locations they represent. You can use our Surveyor Apps for quick sharing of your photos from the field.
Note: Members who have uploaded their photos of surveying to this collection can also move their photos to location based hubs. To see how, follow this tutorial.
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