Manhole cover and trigonometric point Basis Bonn C, Kölnstraße, Bonn, NRW, Germany
Posted by: Groundspeak Premium Member Maisi2
N 50° 45.031 E 007° 04.652
32U E 364384 N 5623844
The manhole cover is located at Kölnstraße/An der Josefshöhe, Bonn, NRW, Germany.
Waymark Code: WMT0WW
Location: Nordrhein-Westfalen, Germany
Date Posted: 09/05/2016
Published By:Groundspeak Premium Member lumbricus
Views: 11
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This manhole cover acts at the same time as a trigonometric point of the geodetic baseline "Basis Bonn" (Point C). The Berlin General Staff Officer Johann Jacob Baeyer has used this line as the basis for the triangulation of the Rhineland in the 19th century.
Pick one to describe the ...: Sewer drain cover

Year stamped on the cover: 1980
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Narayan, visited Manhole cover and trigonometric point Basis Bonn C, Kölnstraße, Bonn, NRW, Germany 03/06/2017 Narayan, visited it
argus1972 visited Manhole cover and trigonometric point Basis Bonn C, Kölnstraße, Bonn, NRW, Germany 09/07/2016 argus1972 visited it

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