Manhole cover and trigonometric point Basis Bonn A, Kölnstraße, Bonn, NRW, Germany
Posted by: Groundspeak Premium Member Maisi2
N 50° 45.811 E 007° 03.323
32U E 362859 N 5625330
The manhole cover is located at Kölnstraße/Egerstraße, Bonn Buschdorf, NRW, Germany.
Waymark Code: WMT0WR
Location: Nordrhein-Westfalen, Germany
Date Posted: 09/05/2016
Published By:Groundspeak Premium Member lumbricus
Views: 6
Download this waymark:
.GPX File
.LOC File
.KML File (Google Earth)

This manhole cover acts at the same time as a trigonometric point of the geodetic baseline "Basis Bonn" (Point A). 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
Visit Instructions:
No "Visited" only remarks accepted.
Search for...
Geocaching.com Google Map
Google Maps
MapQuest
Bing Maps
Nearest Waymarks
Nearest Unique Manhole Covers
Nearest Geocaches
Create a scavenger hunt using this waymark as the center point
Recent Visits/Logs:
Date Logged Log  
Seebär777 visited Manhole cover and trigonometric point Basis Bonn A, Kölnstraße, Bonn, NRW, Germany 07/11/2019 Seebär777 visited it
argus1972 visited Manhole cover and trigonometric point Basis Bonn A, Kölnstraße, Bonn, NRW, Germany 09/07/2016 argus1972 visited it

View all visits/logs