If someday someone does this study for South Florida, they will wonder how a previously mountainous terrain became so flat. You can drive around and spot "Hills," "Heights,” “Ridge,” “Vista,” and “View” on pancake-flat sites. Hopefully there weren't ancient Scottish versions of real estate developers confounding this study.
In a low lying area, all these names can refer to far more smaller features than they would in hillier places. The "ridge" in question may have been only twenty foot tall for example, and smaller than a railway foundation. Some of these may have been artificial and built by native peoples. Others might be remnants of ancient tsunami and hurricanes, changing sea levels, floods and so on. The same phenomenon occurs els…
Yes. My in-laws in East Anglia lived near Ramsey Heights, which (just checked my OS map) is almost entirely below the 10m contour. The nearby Ramsey Forty Foot mostly exceeds the 10m contour. They are great places for lazy cyclists but the downside side is the relatively high winds that are uninterrupted by terrain, and which always seem to orient themselves to be a local headwind.