hzrd149 on Nostr: yeah, the geohash is listed in the event in a 'g' tag. I think its defined in NIP-52 ...

yeah, the geohash is listed in the event in a 'g' tag. I think its defined in NIP-52 https://github.com/nostr-protocol/nips/blob/master/52.md
If you "View Raw" on one of the events you can see it has a bunch of 'g' tags