Continents are messy, because landmass on Earth is messy, it's contiguous where it looks like it isn't and so on. A more surprising thing (at least IMHO) is th

Continents are messy, because landmass on Earth is messy, it's contiguous where it looks like it isn't and so on. A more surprising thing (at least IMHO) is that different countries have different definitions of... mountains. I'm not a geologist but if we can trust Wikipedia (https://en.wikipedia.org/wiki/Mountain https://en.wikipedia.org/wiki/Mountain): - in the UK mountains are at least 2,000 feet high - according to a UN program, mountain environments include places with "Elevation between 300 and 1,000 m (984 and 3,281 ft), with a 300 m (984 ft) elevation range within 7 km (4.3 mi)" - according to the US Geographical Survey (USGS), there is no official definition of mountain