I’ve seen for a while that my county’s fairgrounds are unmapped, but I haven’t mapped them as I have been unable to figure out a good way to tag them. Yesterday I was going though local notes and I saw one that was asking if the fairgrounds were indeed at the location there are at. This got me intrested in tagging them again, so I asked on the OSM-US slack for ideas on how to map them. A few sugestions I got were to use the amenity=festival_grounds or the leasure=park tags.

I like the sound of the festival_grounds tag, it seems like it is just the right tag for a fairgrounds. Then I opened the wiki…

The description on the page for amenity=festival_grounds is describeing an outdoor music venue. The page doesn’t have anything that even resembles a county fairgrounds. This doesn’t add up, so I head over to taginfo to see how the tag is used and where. It has 101 uses total, so it’s not used that much, but it’s more than a couple uses. I can’t use the map on taginfo because the tag is not used enough, so I do a search with overpass-turbo. Overpass shows a asortment of uses around the world, but mostly in America and Europe.

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