21.   The Jackson Hole Airport is surrounded by mountains, making a precise approach mandatory, and the thin air makes planes and their engines less efficient.

22.   The resort has only one road and is surrounded by mountains.

23.   Two huge whale bones form an arched portal outside the blue wooden church in this picturesque town surrounded by mountains in the Arctic Circle.

24.   Years ago, wooded mountains surrounded Fonds Verrettes.

25.   He produces a watercolouring of a boat sailing in a lake surrounded by mountains.

26.   The two former Soviet republics are at complete loggerheads on the future of the contested region, a plateau surrounded by mountains.

27.   Tuzla, a large smog-bound industrial city, is surrounded by mountains and has been swathed in thick fog for several days.