> Am 09.01.2017 um 22:15 schrieb Warin <61sundow...@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. geow _______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging
