[Tagging] What about a disused quarry and historic surface mining?
ksgeo at web.de
Mon Jan 9 21:56:22 UTC 2017
> Am 09.01.2017 um 22:15 schrieb Warin <61sundowner at gmail.com>:
> On 10-Jan-17 07:56 AM, ksg wrote:
>> You might use man_made=embankment for them. Don’t use natural=cliff, as these features are not of natural origin.
> The 'natural' key is used for both 'natural' and 'unnatural' objects!
> For example 'wood' is used where the trees have been grown from manually collected seed in an artificial light, automatically provided watering with liquid food, within a temperature and humidity controlled environment, and then manually planted out.
> Another example is 'water' used in so many man made dammed areas.
> In general a cliff is more vertical and taller than an embankment.
The comparison is IMHO misleading because the tree seedlings/growing trees are still natural organic matter. Water is of natural origin and part of the hydrological cycle, regardless if it forms a sea, a lake or is stored in a reservoir.
In contrast the mining faces exist not by geological consent, they are artificial.
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