It's already mapped as [https://www.openstreetmap.org/relation/9237365][1] . In general, if you wonder why a particular map does not show that as you would expect, you'll need to ask the map style developers about that. For OSM's "standard" map, that is [https://github.com/gravitystorm/openstreetmap-carto][2] . In this case, it's broken because there's there was a gap in the outside edge, which you can could see in JOSM's validator. I'll fix that. I've fixed that in [https://www.openstreetmap.org/changeset/98147860][3] . Various maps will start updating in about 5 minutes. This isn't a National Park or AONB (well, there is a separate Llyn AONB), but what I wrote at [https://www.openstreetmap.org/user/SomeoneElse/diary/395232][4] mostly applies here too. [1]: https://www.openstreetmap.org/relation/9237365 [2]: https://github.com/gravitystorm/openstreetmap-cartohttps://github.com/gravitystorm/openstreetmap-carto [3]: https://www.openstreetmap.org/changeset/98147860 [4]: https://www.openstreetmap.org/user/SomeoneElse/diary/395232

It's already mapped as [https://www.openstreetmap.org/relation/9237365][1] . If In general, if you wonder why a particular map does not show that as you would expect, you'll need to ask the map style developers about that. For OSM's "standard" map, that is [https://github.com/gravitystorm/openstreetmap-carto][2] . In this case, it's broken because there's a gap in the outside edge, which you can see in JOSM's validator. I'll fix that. [1]: https://www.openstreetmap.org/relation/9237365 [2]: https://github.com/gravitystorm/openstreetmap-carto

It's already mapped as [https://www.openstreetmap.org/relation/9237365][1] . If you wonder why a particular map does not show that as you would expect, you'll need to ask the map style developers about that. For OSM's "standard" map, that is [https://github.com/gravitystorm/openstreetmap-carto][2] . [1]: https://www.openstreetmap.org/relation/9237365 [2]: https://github.com/gravitystorm/openstreetmap-carto