<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">In the deserts of the southwest United States there are features that could probably use similar help in tagging. In California they usually have “Dry Lake” in the name (assuming they are named). At least one in Arizona has “Playa” (Spanish for beach or shallow) in its name. From your description, they may get water more often than the “dry swamps” you write about but the tagging is similarly unclear.<div class=""><br class=""></div><div class="">At present the Wilcox Playa in Arizona is tagged with:<div class=""><br class=""></div><div class=""><div class="">intermittent=yes</div><div class="">name=Willcox Playa</div><div class="">natural=water</div><div class="">note=This area is dry, not water or wetland.</div><div class="">type=multipolygon</div><div class="">wikidata=Q8003532</div><div class="">wikipedia=en:Willcox Playa</div><div class=""><br class=""></div><div class="">While a California example is tagged with:</div><div class=""><br class=""></div><div class=""><div class="">name=Soda Dry Lake</div><div class="">natural=mud</div><div class="">wikidata=Q81309</div><div class="">wikipedia=en:Soda Lake (San Bernardino County)</div></div><div class=""><br class=""></div><div class="">This could be an interesting discussion and maybe we can arrive at tagging that works outside of Australia as well as accurately describe your dry swamps.</div><div class=""><br class=""></div><div class="">Cheers,</div><div class="">Tod</div><div><br class=""><blockquote type="cite" class=""><div class="">On Feb 11, 2023, at 2:07 AM, Warin <<a href="mailto:61sundowner@gmail.com" class="">61sundowner@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><meta charset="UTF-8" class=""><div style="margin-bottom: 0.25cm; line-height: 16.100000381469727px; background-color: transparent;" class=""><br class="webkit-block-placeholder"></div><p style="margin-bottom: 0cm; line-height: 14px; background-color: transparent;" class="">The ‘dry swamp’ has no apparent way to tag it. These will not be found in Europe, just as you don’t find deserts there.<span class="Apple-converted-space"> </span></p><p style="margin-bottom: 0cm; line-height: 14px; background-color: transparent;" class="">They have occasional water, not seasonal, not yearly but, say, between 5 to 20 years they have water. As such they do not satisfy the OSM swamp definitions at all.<span class="Apple-converted-space"> </span></p><p style="margin-bottom: 0cm; line-height: 14px; background-color: transparent;" class="">See<span class="Apple-converted-space"> </span><a href="https://theconversation.com/why-a-wetland-might-not-be-wet-103687" class="moz-txt-link-freetext" style="color: rgb(0, 0, 128); text-decoration: underline;">https://theconversation.com/why-a-wetland-might-not-be-wet-103687</a><span class="Apple-converted-space"> </span>for more on their characteristics, at least in Australia. OSM has access to a imagery source in Australia that maps them, so OSM has a legal source for them. What is needed is a tag for them, say, ‘natural=dry_swamp’???<span class="Apple-converted-space"> </span></p><p style="margin-bottom: 0cm; line-height: 14px; background-color: transparent;" class="">There are ~ 4,000 of these ‘natural=mud’ mapped so far that are in fact ‘dry swamps’. Note that the tag natural=mud wiki says “This tag should not be used for areas with intermittent water cover which are water covered or completely dry most of the time.” So this tagging is incorrect as they are dry most of the time… <span class="Apple-converted-space"> </span><br class=""></p><p style="margin-bottom: 0cm; line-height: 14px; background-color: transparent;" class=""><br class=""></p><p style="margin-bottom: 0cm; line-height: 14px; background-color: transparent;" class="">There are more in existence but not mapped.<span class="Apple-converted-space"> </span></p><p style="margin-bottom: 0cm; line-height: 14px; background-color: transparent;" class="">Sample<span class="Apple-converted-space"> </span><a href="https://www.openstreetmap.org/way/1143825454" style="color: rgb(0, 0, 128); text-decoration: underline;" class="">https://www.openstreetmap.org/way/</a><a href="https://www.openstreetmap.org/way/1143851993" style="color: rgb(0, 0, 128); text-decoration: underline;" class="">1143851993</a></p><p style="margin-bottom: 0cm; line-height: 14px; background-color: transparent;" class=""><br class=""></p><p style="margin-bottom: 0cm; line-height: 14px; background-color: transparent;" class="">Any thoughts?<span class="Apple-converted-space"> </span></p><p style="margin-bottom: 0.25cm; line-height: 16.100000381469727px; background-color: transparent;" class="">_______________________________________________<br class="">Tagging mailing list<br class=""><a href="mailto:Tagging@openstreetmap.org" style="color: rgb(0, 0, 128); text-decoration: underline;" class="">Tagging@openstreetmap.org</a><br class=""><a href="https://lists.openstreetmap.org/listinfo/tagging" style="color: rgb(0, 0, 128); text-decoration: underline;" class="">https://lists.openstreetmap.org/listinfo/tagging</a></p></div></blockquote></div><br class=""></div></div></body></html>