Anyway, feet is the regular measurement for height in the US afaik, except that’d put this mountainous region at western Benelux-level heights of <10 m, meaning it’s either a pretty darned deep valley or right next to the ocean. But even in yards/meters it would be rather low. 14 chains (~281 m) would seem more likely, except that, well, no one uses chains.
Putting it floating in the air (14 miles) might explain a lot. It ought to be worth theorizing about, anyway.
Excellent. 