Quote Originally Posted by Dhampir
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Geologic landmarks--like rivers and hills--will still be there and are unlikely to have changed to the point where they are terribly different from two or three thousand years ago.
I have to disagree abour rivers, they snake around a lot. Even hills can shudffle about: I believe certain boundaries around the San Andreas fault move a yard a year or more. However there are definitely stable features you can rely on.

Quote Originally Posted by Dhampir
From what I'm seeing here, cmacq isn't saying these are exact locations. The maps linked are generally several miles across, meaning there is a hell of a lot of room for an ancient battlefield in there.
Spot on. He's offering a useful resource based on historical sources and availabvle maps on a military simulation site. Very worthwhile: even if I don't have the skills to make use of it, I can see the value of it.