John Sessoms wrote:
They may not be readily visible to an untrained eye, but you've got terrain features.
And knolls and glens and basically any undulation in the terrain, if you haven't got something convenient like a river/creek/lake nearby. Even in the middle of the Sahara or Arctic you have terrain features ... unfortunately, they're mobile in the Sahara and Arctic so the maps will never match them. :-)
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