yes but va-9 contains a large portion of the non-coal areas of sw va also.
outside of the coal counties, union activity drops off significantly in va.
many of those counties in sw va are former coal counties. unions left with the departure of the coal companies.
VA-9 contains Coal Country (the majority of the district) and some "GOP since the Civil War" counties further east.
The Coal counties (which also have some very nice mountains) almost always outvote the eastern "Great Valley" counties.
In the Primary Kerry won huge majorities in the Coal counties (he was endorsed by both Warner and Senator Rockefeller (D-WV), while Edwards' won the eastern counties in the district.
Gore lost several coal counties (Wise for example) in 2000.