On 7/15/08, Dermot McNally <[EMAIL PROTECTED]> wrote: > To expand on this - because it's something I've wondered about myself > - when tagging as seen on-the-ground, there's a big difference between > a bog being used commercially and a normal, untouched bog. The > commercially-worked ones have had the vegetation layer stripped off to > expose vast areas of chocolate-brown peat, easily recognised from > satellite images. Untouched ones are marshy and have heather growing > on them, but are otherwise of fairly normal appearance. > > Is there precedent from open-cast mines that might show us how to tag > "open" bogs?
There is this: http://wiki.openstreetmap.org/index.php/Proposed_features/Surface_Mining But I don't think it covers the "bog" as a whole. Perhaps a big polygon natural=lowland_bog and within that, areas of landuse=surface_mining with resource=peat ? This brown area, visible on landsat would represent the current mined area, open to the air. I think peat is the same as turf, used in domestic fires? Tim _______________________________________________ talk mailing list [email protected] http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk
