The space between two hills is a valley.
valley
badlands.
a valley
valley
Valley
A valley is a stretch of low land lying between hills or mountains. It is typically formed by water erosion or tectonic forces and often contains a river or stream running through it. Valleys can vary in size from small and narrow to large and wide.
Badlands
A v-shaped valley is a long stretch of low lying land that lies between mountains or hills.
low land between moutians or hills
A valley is a stretch of lowland located between hills and mountains formed by erosion. It usually contains a river or stream running through it.
A low lying land between hills or mountains is called a valley
A flat stretch of land without any hills or mountains is typically referred to as a plain. Plains are large areas of flat land that do not have much variation in elevation. They can be found on every continent and often support agriculture due to their fertile soil.