steep hill

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California Mudslide: Shocking Eyewitness Footage (Full Episode) | Witness to Disaster | Nat Geo
The soil was sitting on these steep hill slopes.
geology
крутые склоны холмов
Круто наклонённые склоны холмов.
Egypt's Lost Wonders (Full Episode) | Drain the Oceans
You come up this steep hill and you're met with this massive fortified gateway.
geography
крутой холм
Холм с крутым, трудным для подъёма склоном.