Changeset: 3242052
Bonny Doon area Sandhills
Closed by stevea
Tags
created_by | JOSM/1.5 (2524 en) |
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Discussion
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Comment from user_5359
Hello! What is the meaning of your different ways only marked with name=Sandhills? Please see http://overpass-turbo.eu/s/nEs
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Comment from stevea
These are a unique-to-the-area geological formation of rock/sand which give rise to the frequent quarries in the area (many largely "played out" and now closed). In the middle Miocene epoch (about 15 million years ago) this area was underwater/ocean and today these areas are often part of boundary=protected_area polygons because of the endemic unique plant and animal life that are there, some are found only on Earth right here and are endanged species.
As I am not sure what the proper "geological-oriented" tags are, and these ARE unique local geography, I have identified them (roughly, the polygons are rather crude) so that they may be tagged with better tags in the future as these evolve. Do you have any suggestions?
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Comment from user_5359
Did you read https://wiki.openstreetmap.org/wiki/Key:natural?
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Comment from stevea
Many times, but there are no values for that key which seem appropriate. It may be time to "coin" one (make one up). However, it is so local and unique, that I have been reluctant to do this.
You might do a Google search on "Santa Cruz sandhills" or look at http://www.santacruzsandhills.com if you wish to do some research to help me. These have always proven fairly easy to map (crudely, with a rough polygon) but I always get stuck when it is time to tag them. They have many unusual aspects to them like shark's teeth from millions of years ago to strange green beetles which are found nowhere else. It's like a strange weird island world in the middle of the forest. I actually live within site of one and it is a genuinely unusual feature upon this local part of the Earth.
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Comment from user_5359
I see some similarities with a dune. Did you know the Dune of Pilat (https://en.wikipedia.org/wiki/Dune_of_Pilat, http://www.openstreetmap.org/relation/2244861#map=15/44.5888/-1.2179 )?
The parts with fossils can be marked with https://wiki.openstreetmap.org/wiki/Tag:geological%3Dpalaeontological_site .
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Comment from stevea
Thank you, although these are much more geologically and biologically rich than a simple sand dune. They are a wholly unique feature on the landscape. Some of them actually are protected within boundary=protected_area, protect_class=1a, 6 or 7, however, when they fall upon private property (as they often do), they are not. However, I strongly believe they need to be identified on our map, so I put them into OSM.
I am considering adding the tag geological=sandhills, however, when I attempt to edit the wiki (and I have written thousands of lines and many pages of wiki in OSM) it will not let me enter a new table row.
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Comment from stevea
Now I believe that geological=outcrop might be about right, but it's still pretty rough.
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Comment from stevea
I have added geological=outcrop to these data, along with a FIXME tag which describes them as rough and needing additional refinement. Thank you for your help!
Ways (7)
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