The key to the battle was the exploitation of the natural terrain and fortifications.
The natural terrain is mostly rocky and settlements here are of relatively new construction.
The natural terrain is well preserved on the island.
The design's fragmentation, moreover, refers to more than the natural terrain.
Ideally this work should be done on natural terrain, including hills.
A lot of what we're up against is the protection offered by the natural terrain.
But on Earth much of the natural terrain had been destroyed by man's advance.
Because each race is very long, trails of natural terrain are generally used.
Radar painted all the picture they needed of natural terrain.
A game field is scattered with natural or artificial terrain, which players use for tactical cover.