A region of hills: often specifically applied to the hilly regions in the interior of India.(noun)
The Century Dictionary (Public Domain)
Use "hill-country" in a sentence
"In 1971 Chavez moved headquarters from Delano to a remote hill-country compound-an indication, some thought, of his own increasing remoteness."
"Tough hill-country men voted for her, men so backward they'd give the lady a chair in the union hall."
"The country in the ranges is as fine a pastoral hill-country as a man would wish to possess; grass to the top of the hills, and abundance of water through the whole of the ranges."