This is actually really amzing and such an interesting way to record these fine details. It would also be interesting if someone were to make such a map via #hive tho no idea how it'd be done, but it'd be fun to contribute. As we move closer to every finite detail of the 'real world' being mapped for the virtual, it's interesting to consider it's ultimate use.
Thanks for sharing this @steevc
We could build maps as Pinmapple does with some metadata in the posts, but it needs something to collect and display it. I think this is an ideal use of blockchain rather than using a centralised database. I may look into how it could work.