Key takeaways
- A saddle is a low point on a ridge between two higher summits — like a saddle's seat.
- Also called a col or gap, it's the easiest place to cross from one side of a ridge to the other.
- Trails, mountain passes, and climbing routes frequently route over saddles.
- On a topo map, a saddle appears as an hourglass or figure-eight pinch of contour lines.
What a saddle is
A saddle is a low point or dip along a ridge, sitting between two higher summits — named because its shape resembles the seat of a saddle, rising on two sides and dropping away on the other two. It’s also called a col, gap, notch, or (when used as a travel route) a pass.
Why routes use saddles
Because a saddle is the lowest, easiest place to cross a ridge, it’s the natural line for trails, mountain passes, and climbing routes to traverse from one side to the other. Crossing at a saddle means the least elevation gain and usually the gentlest terrain over the ridge.
To get from one valley to the next, a hiker aims for the obvious saddle on the dividing ridge — the trail switchbacks up to that low notch rather than climbing over a summit, minimizing the climb.
Spotting it on a map
On a topographic map, a saddle appears as an hourglass pinch of contour lines: the contours of the two flanking peaks come together at the low waist between them. In mountaineering the same feature is often called a col.
The bottom line
A saddle is the low, crossable dip between two summits on a ridge — the natural place for trails, passes, and climbing routes to traverse a ridgeline. Learn to spot its telltale hourglass of contour lines on a map, and you can read where a route is likely to cross and plan your line over the high country.
Frequently asked questions
What is a saddle in hiking?
A saddle is a low point or dip along a ridge between two higher peaks, named for its resemblance to a horse's saddle. It's the lowest, and usually easiest, place to cross over a ridge from one drainage to another, which is why so many trails and passes go over saddles.
What's the difference between a saddle, a col, and a pass?
They overlap. 'Saddle' and 'col' both describe the low dip between two summits on a ridge (col is more common in mountaineering); a 'pass' usually refers to such a low point used as a route through a mountain range. Local terms vary — gap, notch, and gap are regional names for the same feature.
How do you identify a saddle on a topographic map?
A saddle shows up as an hourglass or figure-eight pinch in the contour lines: the contours from the two higher summits come together at the low point between them. Picture two sets of concentric rings (the peaks) with a pinched waist between — that waist is the saddle.
Sources
- Reading terrain & maps — USGS
- Navigation & landforms — The Mountaineers