[OSM-talk-ie] Ringforts

[Rory McCann]

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Hi.

I've been mapping ringforts myself. However I've been using a tagging
suggested by brianh, and I've mapped about 1,600 of them.

     historic=earthworks
     earthworks=rath

You can sorta see here that I've bee working through Clare & Kerry:
http://taginfo.openstreetmap.ie/tags/earthworks=rath#map

or on histosm: http://histosm.org/#9/-9.04724/52.39236/0/earthworks

I've been using Bing & the GSGS sheets, and I map them if they are
visible on the Bing maps (which IME is nearly always). I think
ringforts are worth mapping. They meet all the requirements for
mapping on OSM.

The National Monuments Service *have* released all of the
Archaeological Survey of Ireland as (a form of) Open Data, however the
licence is CC-BY 4.0, which is not *yet* compatible with OSM. The OSM
Licensing Working Group should reply Real Soon Now™ with how we can
use it. Once they do, we can speed up the mapping of them a lot.

https://data.gov.ie/dataset/national-monuments-service-archaeological-survey-of-ireland


On 08/03/17 19:06, Brian Tuffy wrote:
> Hi Keith, There were some already mapped in my area and so I 
> started mapping some myself here, 
> http://histosm.org/#11/-9.1571/53.827/0/
> 
> HistOSM gives a clearer picture of these kinds of things, the more
>  historical things get, the less relevant they are for OSM though.
> I wonder is it possible to add to HistOSM but not to OSM???
> 
> I have used the following tagging, which I adapted from somewhere 
> else in Ireland. I also try to add the names if possible. historic 
> = archaeological_site site_type= fortification fortification_type
> = ringfort
> 
> But I have seen other tagging schemes such as:
> 
> - historic=archaeological_site - type=ringfort
> 
> 
> 
> - archaeological_site=fort - historic=archaeological_site - 
> name=Abbey Grey Fort - source=GSGS 3906
> 
> 
> 
> - archaeological_site=cashel - historic=archaeological_site - 
> man_made=embankment
> 
> 
> 
> Some might argue that ringforts are not important to map, and I 
> suppose they are insignificant if there is no trace of them
> visible (possibly good to map them for Histosm.org though!).  In
> rural areas, ringforts can be important landmarks and also townland
> names are sometimes named after ringforts and it's rewarding to see
> a ringfort in a certain townland in that case. Note that the 
> rings/ways don't appear in the OSM standard view, just a 
> archaeological symbol.
> 
> I stopped mapping ringforts for a few reasons. (1) There is just 
> way to many of them around (2) not sure of the tagging scheme to 
> use myself (3) Somehow hoping that the National Monuments Service 
> will provide their open data at some point in the future (4) Not 
> sure how useful this data is for OSM. 
> http://webgis.archaeology.ie/historicenvironment/
> 
> As far as I can see there is no "standard" for mapping ringforts
> in Ireland and no way to distinguish Carn/ringforts etc. Hopefully
> we can decide on some standard way of tagging ringforts in this 
> discussion and I would be happy to add them again too.
> 
> Brian T
> 
> 
> 
> On Wed, Mar 8, 2017 at 6:09 PM, Keith <keith at vool.ie> wrote:
> 
>> Helo,
>> 
>> Just wondering if there is any common tags used to tag 
>> ringforts/rath/lios's etc., and if many have been mapped to date 
>> ?
>> 
>> Keith
>> 
>> 
>> _______________________________________________ Talk-ie mailing 
>> list Talk-ie at openstreetmap.org 
>> https://lists.openstreetmap.org/listinfo/talk-ie
>> 
> _______________________________________________ Talk-ie mailing 
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> 
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