'steep ridge' is correct and usable in written English.
You can use it to describe a formation of land with a sharp rise or fall in elevation. For example: The climbers scaled the steep ridge, pushing their limits to make it to the summit.
We followed a winding road up a steep ridge that was lightly covered with a fine, dry snow — a kind of Arctic sand.
AS we neared the end of a very long climb up a very steep ridge, my guide, John Leivers, shouted at me over his shoulder.
At one point, the advance carried the rebels past a Qaddafi mortar position just behind a short, steep ridge off the road.
We interpret these deposits as induced by mass rock creep and landsliding at the terminus of a steep ridge or a steep valley side slope.
Heavy smoke could be seen billowing ominously from the top of the steep ridge above the winery, but the air was calm and surprisingly cool.
Whenever the rope ran out, Mr. Simpson dug into the steep ridge face and waited for Mr. Yates to climb down.
Plate shaped, Steep Ridges, Unimodal and Multimodal benchmark functions were used to compare experimental results.
In defense, or perhaps to let some compatriots escape, Al Qaeda fighters have taken positions on the steep ridges.
The vegetation is tangled and thick; steep ridges rise abruptly from the lake, as much as 2,500 feet in just a mile and a half.
The scales on each type of butterfly also had steep ridges, with small holes on either side leading to a second layer.
It's not easy: the Haute Vallée de l'Aude is a wildly sculptured land of steep ridges and twisting valleys, pinnacle-topped peaks and narrow gorges.
