country rock

noun3

1. •
   A genre of music combining elements of country music and rock music.
2. •
   The rock which is native to a certain area.
3. •
   Rock that surrounds reefs or lodes of mined minerals, forming the walls and floors of quarries, or through which mine tunnels are driven.

   • After driving, and opening the reef for some distance, it turned under, and completely pinched out in country rock. — 1912