There are lots of tools out there that can do hillshading on available DEMs. QGIS is one option. A reasonable dataset for maps of the US is ETOPO2.
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Ohhh... so cool. I love it. very Tribal. Also reminds me of the Isle of Dread adventure module... the island shape.... Can't wait to see the finished...
Welcome Moonborn, you are in the right place! Hope to see and hear more about this world you are building. I love world building myself, as a GM for...