terrain
US /təˈreɪn/
UK /təˈreɪn/

1.
terreno, orografía
a stretch of land, especially with regard to its physical features
:
•
The mountainous terrain made hiking difficult.
El terreno montañoso dificultaba el senderismo.
•
They had to navigate through rough and uneven terrain.
Tuvieron que navegar por terreno accidentado e irregular.