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asked 27 Mar '11, 05:13

maning's gravatar image

maning
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As this has not been answered up until now, I will respond with my initial reaction.

Use natural=rock, with an additional tag something like rock=lava. Further keys could be used to add information about the type of lava. Alternatively, if you consider lahar not to be a rock then consider creating a tag value which can encompass other types of destructive debris flows (avalanche, mudflow, landslips, Bergstürzen, and so-on), perhaps natural=debris_flow (my preference) or natural=landslip, again with additional tags to provide more information.

There is also a little-used key geological=*, which may be applicable in this situation.

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answered 29 Mar '11, 11:38

SK53's gravatar image

SK53 ♦
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question asked: 27 Mar '11, 05:13

question was seen: 3,379 times

last updated: 29 Mar '11, 11:38

NOTICE: help.openstreetmap.org is no longer in use from 1st March 2024. Please use the OpenStreetMap Community Forum