A realistic option for enclosing a geographic area

So in many games you have regions that are bordered on all sides by impassible geography of some sort or another. This has always bothered me as necessary but also acts as a reminder to pull you out of the fantasy.

I am looking for some real world examples of geography that could fit the bill and be used as a model.

• Area should be 10 miles by 10 miles, though shape is irrelevant, just need the space.
• The area should have no more than 2 or 3 access points. These access points should be usable by the average medieval person. Obviously a small group of trained individuals can access from virtually any direction, those don't matter
• Biome type is not particularly relevant, though my preference is that it include forest.

posted almost 7 years ago

James‭

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