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I'm new to GIS, and attempting to use the software to build a map for a publication that concerns the Beringian migration of humans ~30-15kya. I need to generate a figure that shows both the Beringian land cover that would have been exposed during this time as well as the glacial coverage (Llaurentide and cordilleran ice sheets) that would have prevented humans from migrating while they were at their peak during approximately this time range.

Does anyone know how I could go about finding spatial parameters for something like this so I could generate a map?

  • If it’s open data that you seek then I think the place to ask is the Open Data Stack Exchange. – PolyGeo Jun 18 at 1:19
  • Where have you looked? Are there images of the land cover/ice sheet extent anywhere, like on Wikipedia? – Spacedman Jun 18 at 6:30
  • There are definitely images of the land cover and the ice if you google it, but I'm looking for a way to make a publication figure, so I need to somehow generate my own graphic. I'd prefer not to do it by estimating what the shapes should look like, but rather use some citable or more standardized boundaries. – user3772361 Jun 20 at 4:02

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