Simon WillisonJul 27, 2023

https://overturemaps.org/ released an astonishing GIS dataset yesterday that includes 60m "place of interest" listings (businesses, attractions etc) under a VERY permissive license

It's 8GB of data and the quality from an initial spot-check seems to be very high. I wrote about how I've been exploring it so far here:

https://til.simonwillison.net/overture-maps/overture-maps-parquet

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Overture Maps Foundation
Show threadSimon WillisonJul 27, 2023

I used DuckDB to extract data from the released parquet files, then loaded that into SQLite so I could use it with @datasette

Here's a demo I built with just the data from the places city for the city of Half Moon Bay - 931 listings in total: https://hmb-overture-demo.vercel.app/hmb/places

hmb: places: 931 rows

Show threadEd FreyfogleJul 28, 2023

@simon @datasette great write-up, thanks.

What's your impression as a resident of Half Moon Bay?

Is the data correct? How fresh is it? How does it compare with OSM?

Show threadEd FreyfogleJul 28, 2023
@simon @datasette umm, is there actually a restaurant / cinema on the water in the middle of the bay?
Show threadSimon WillisonJul 28, 2023
@freyfogle @datasette it looks like that's the Mavericks surf competition, so yeah that's the right spot
Show threadEd Freyfogle
@simon @datasette sure, but why is it labeled as a resturant?
Jul 28, 2023 at 4:41pmElk
Show threadSimon WillisonJul 28, 2023
@freyfogle @datasette yeah those categories are very clearly off!