[Tagging] Feature Proposal - RFC -mass rock

Bert -Araali- Van Opstal bert.araali.afritastic at gmail.com
Sat Apr 10 15:26:07 UTC 2021

I am completely against mapping something that is not verifiable or 
historical (disputed or not as being historic).

With verifiable I mean with local knowledge and some sign of ground truth.
The presence of the rock itself does not signify that it was used for 
this purpose. The (historic) mass aspect is a use case.  So if there is 
no inscriptions or some kind of permanent marking that it was used for 
this purpose in the past I would not map it in the regular OSM, it 
belongs in https://www.openhistoricalmap.org 
If we would start mapping these use cases we should ask ourselves where 
this is going to take us ? What more use cases are we going to map which 
solely exist in the minds or literature.  It doesn't make much sense in 
mapping the real world, only clutter the map.

In case their is some physical trace of usage of the rock for this 
purpose, I would support it and it would be justified. However minor or 
vague it is, but it needs to be a combination of both verifiable as in 
local knowledge as some evidence of the use (not the physical natural 
feature as the existence of the rock).


Bert Araali

Should be mapped on historic.osm .

On 02/04/2021 18:21, Anne-Karoline Distel wrote:
> Just to be clear - the rock itself is not sacred, it was just safer to 
> celebrate mass in the open air with guards posted around rather than 
> meeting in a barn or church ruin, because you could just flee across 
> the fields or into the woods in case British soldiers were approaching 
> to avoid being killed.
> And I haven't found out whether there might still be annual mass being 
> said in some locations, especially when there is a holy well nearby.
> On 02/04/2021 13:53, Paul Allen wrote:
>> On Fri, 2 Apr 2021 at 13:30, Mateusz Konieczny via Tagging 
>> <tagging at openstreetmap.org <mailto:tagging at openstreetmap.org>> wrote:
>>     to clarify:
>>     I am 100% fine with tagging existing and visible remains/ruins
>> So you won't have a problem with tagging a mass rock. Which tags get
>> used are open to discussion, but even you have to agree that if the
>> rock is still there, it can be mapped.
>>     I am not accepting mapping things of completely and utterly
>>     gone, without any trace whatsoever - and without danger of
>>     accidental remapping.
>> The rocks are still there.  And can be mapped as natural=rock
>> (or bare_rock or whatever).  Plus some other tags.
>> Actually, a rock doesn't have to have been used for masses to be
>> sacred.  And it may still be in use.  And it's mappable.
>> http://stdogmaels.org/the-blessing-stone-and-landing-stage/ 
>> <http://stdogmaels.org/the-blessing-stone-and-landing-stage/>
>> If we come up with a sensible set of tags for holy rocks, I'll
>> map it.
>> -- 
>> Paul
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