A saddle.
The low point on a mountain ridge is called a col or a saddle. It is the area between two higher points along the ridge line.
The low point of a mountain ridge is called a col or a saddle. It is the point where two slopes converge and is often a pass or a corridor between two peaks.
A low point on a ridge between two mountain peaks is called a saddle. A low level separating two mountains is called a valley.
ridge
The term for the natural gap in a mountain ridge is called a "pass" or a "col." These are low points that allow for easier travel between two adjacent valleys or mountain peaks.
the thin mountain ridge is called an arête.
The low point of a mountain range is called a pass. In contrast, the high point is called a peak.
A saddle in geography refers to a low point or dip between two higher points on a ridge or mountain. It has a characteristic saddle shape, resembling a horse saddle, hence the name. Saddle points are important features for hiking and mountaineering as they often provide a passageway or route to cross over a mountain ridge.
A mountain ridge.
pass
A spur is a subsidiary summit of a mountain. By definition, spurs have low topographic prominences, as they are lower than their parent summit and are closely connected to them on the same ridge-line.
Another word for mountain ridge is arête which is the French word for edge or ridge.