How did coal miners vote?

[Gunnar Larsson]

This map was helpful:


I took the counties with at least 2 coal mines (and excluded Jefferson County, AL); the two-party-vote was 64/36 Romney.

So, basically they switched to the Republicans on a rather massive scale and was the cause of much of the really large changes in vote margin.

Somewhat off-topic, does anyone know why that county in south eastern Ohio had a big switch to the Democrats, it looks quite lonely..