A visit to the primary triangulation point of the Prussian spatial reference system

The stairs to the Rauenberg Trig Point park on Marienhöhe
I arranged to meet Martin at Attilastrasse and was half an hour late, much to my shame. The strange park that the TP is in is called Marienhöhe. Martin puts it well. “I can remember previously dreaming of several features of this unusual place and of its act of description here; the terracing, as if in a hall but obviously an exterior location. …”
TP Rauenberg
Reading about Marienhöhe on de.wikipedia.org, it seems it was the site of a sand and gravel quarry, then a rubbish dump which was augmented with rubble from the Second World War and then grassed over and made into a park with a toboggan run and open air theatre.
Rauenberg stone
One of the curious things about this disorientating park was that the Triangulation Point itself was tucked to the side of a large circular clearing made with stone on the summit of the park, under a tree. The focus of the circular clearing was this large stone above with the curious inscription, which, unlike the TP point itself, lacked any further information or interpretation. The wikipedia article doesn’t mention it. It is as if it is not something anyone is proud of.

Denen –
Die Nicht zurückkehrten
Die Ihre Heimat verloren
Die noch in Knechtschaft leben

To those –
Who have not returned
Who have lost their homeland
Who still live in servitude
(my quick translation)

In any case, although Martin was successful with his high and low frequency and entropy logging, I made a big mistake by not realising that it wasn’t enough to have the Garmin Forerunner on, I had to press ‘Start’. I had planned to make some nice heart rate/elevation maps like here. I did get my usual GPS data, however but I was very disappointed.
Rauenberg GPS trace

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