Show HN: I mapped every US golf course – 16k+ courses, free, no signup

Re:Show HN: I mapped every US golf course – 16k+ courses, fr... by punnerud on Saturday July 25, 2026 @11:44PM (#49054496)

Nice job! When I zoom in on Google earth you can easily see if it’s actually a golf course or not, would been interesting to use this to draw up the areas with polygons and some more details.

Then you could start providing a lot more details about each one automatically.

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Re:Show HN: I mapped every US golf course – 16k+ courses, fr... by rickmf on Sunday July 26, 2026 @12:35AM (#49054767)

yeah i am pulling from OSM. I can probably draw those polygons. It;s been an OK source for number of holes etc but I need to cross reference to get other detailed info

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Re:Show HN: I mapped every US golf course – 16k+ courses, fr... by punnerud on Sunday July 26, 2026 @04:14PM (#49061988)

I was thinking image analysis from satellite images, but of course start with what’s annotated (OSM)

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Re:Show HN: I mapped every US golf course – 16k+ courses, fr... by nirali-shekhwa on Monday July 27, 2026 @06:00AM (#49067314)

This would surely be helpful!

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