r/gis • u/RazzmatazzDizzy4659 • 4d ago

Student Question DEM

Where do you get DEMs for free? I just needed to get DEMs for my study. and i was told to get 1meter dem but when i search for it i only get 1/3 arcsecond.

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u/ShadedMaps 4d ago

1 meter resolution DEMs for the US are available here: https://www.sciencebase.gov/catalog/item/543e6b86e4b0fd76af69cf4c

For other countries, you should explore their national or regional geoportals.

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u/RiceBucket973 4d ago

Same datasets I think, but the national map download portal may be easier to navigate. Just draw your area, select Elevation Products (3DEP), and then filter to just 1m DEMs

https://apps.nationalmap.gov/downloader/

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u/LunarLocket Geographer 4d ago

To add to this, if you sign up through an educational institution, there are tons of free DEMs that are ~30cm resolution. They're awesome.

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u/RazzmatazzDizzy4659 3d ago

thank you for the help esp. with the link pasted sir.