Under [wetland][1] you can find <code>wetland=saltern</code> and <code>wetland=saltmarsh</code> - if that fits... The Note: <ul><li>The Great Salt Lake is tagged as natural=water... If <li>If you tag salt lakes as wetland they are not rendered in zoomlevels greater than 11... 11...</ul> [1]: http://wiki.openstreetmap.org/wiki/Wetland

Under [wetland][1] you can find <code>wetland=saltern</code> and <code>wetland=saltmarsh</code> - if that fits... The Great Salt Lake is tagged as natural=water... If you tag salt lakes as wetland they are not rendered in zoomlevels greater than 11... [1]: http://wiki.openstreetmap.org/wiki/Wetland