The terrain was mountainous.
The geography of the land was mountainous.
Switzerland is noted for its mountainous terrain.
The northern route is more mountainous, but cooler in summer. These northern beans are delicious!
The area around the little village was very mountainous.
Yes, for example:The road ahead seemed to be very mountainous.
The consummate beauty of New Hampshire's mountainous terrain is a manifestation of Nature's sagacious truth.
The geography of Colorado is very mountainous.
The terrain was mountainous because is was covered in mountains. (sorry if this is wrong, in 6th grade!!!) Hannah M.
The area of my fathers origin was very mountainous
The western part of the state is mountainous; the eastern part is flat and arid.
The hill country is rough terrain, for hiking. I prefer mountainous terrain.
There are many varieties of landforms in this region.