On Sat, Jan 17, 2015 at 07:50:36AM -0800, Tod Fitch wrote: > > Based on where I sometimes see old wind driven pumps, I'd guess that many > longer (10s of miles long) washes have an underground flow.
I think so. > On the other hand, in the field or using Bing imagery neither I nor any other > typical citizen mapper can really determine if there is unseen underground > water flow. So so how can that be a criteria for mapping the feature? usually you will assume it if there are ponds of open water or swamps in several places along a valley. Richard _______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging
