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Re:Show HN: 3D live tracking two climbers attempting a Sierr... by closedcontour on Wednesday July 06, 2022 @02:09PM (#32004657)
If you're looking for something worldwide, your best starting point is likely SRTM[1].

If you get into more specific areas you can generally find higher resolution data.

Good luck.

[1] - https://www2.jpl.nasa.gov/srtm/

Re:Show HN: 3D live tracking two climbers attempting a Sierr... by ge96 on Wednesday July 06, 2022 @03:07PM (#32005380)
Thanks for the rec
Re:Show HN: 3D live tracking two climbers attempting a Sierr... by ryandrake on Wednesday July 06, 2022 @04:09PM (#32006139)
Also consider ETOPO1 [1]. SRTM is kind of old and is treetop instead of groundlevel which may matter for your application.

1: https://www.ngdc.noaa.gov/mgg/global/

Re:Show HN: 3D live tracking two climbers attempting a Sierr... by ge96 on Wednesday July 06, 2022 @04:12PM (#32006190)
Yeah I'm specifically looking for slopes/cliffs so a generally flat area then a sharp rise.

Hopefully 100 ft is not too small vs. thousands of feet.

I'll check that link out, thanks.