High or hilly country (6)
I believe the answer is:
upland
(Other definitions for upland that I've seen before include "Hilly country" , "moors?" , "High or hilly terrain" , "High area of country" , "Area of hills" .)
I believe the answer is:
upland
(Other definitions for upland that I've seen before include "Hilly country" , "moors?" , "High or hilly terrain" , "High area of country" , "Area of hills" .)