<div dir="ltr">What's a mountain what's a desert? Depends where you are. A typical color landform map sets defined elevation boundaries for each color on the map.<div>But human practice is that the boundaries are relative. What's a mountain in the East would be a foothill in the Sierra. <br>
</div><div><br></div><div style>Perhaps what the OSM mapper can do is provide hints for the fuzzy rendering, defining the regional norms, with the actual determination based on external elevation or rainfall data. The OSM mapper would say "how dry it has to be" to be a "desert" in "Africa".</div>
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