Battle Map

[Celtic_Punk]

Well most of my battles are fought around the hellas, as I mostly play KH and Averni (even though I have Casse in my sig, i just thought the Casse picture looked cooler) So what strikes me as odd is where Hell's Pass/Gate (AKA Thermoplyae) is not on the tile where it should be. I know theres alotta posts about things related to that battle, but considering it was one of the only places a large army could pass through I thought it should be there.

Was there a reason Thermoplyae was not put in? game balance? pure annoyance of 300? or even just plain not knowing what the pass looked like in 272 BC? Or did the terrain change between the time of the Persian wars to 272 BC?
thanks