Pyramidal peak
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A pyramidal peak, sometimes called a glacial horn in extreme cases, is an angular, sharply pointed mountain peak which results from cirque erosion caused by multiple glaciers diverging from a central
The Matterhorn, a classic example of a pyramidal peak.
Kinnerly Peak in Glacier National Park in the U.S. state of Montana
Alpamayo in Huascarán National Park, Peru
Artesonraju in Huascarán National Park, Peru
Nunatak
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A nunatak is the summit or ridge of a mountain that protrudes from an ice field or glacier that otherwise covers most of the mountain or ridge. They often form natural pyramidal peaks. Isolated nunata
Pyramidal peak
…pointed mountain peak which results from cirque erosion caused by multiple glaciers diverging from a central point. Pyramidal peaks are often examples of nunataks. Glaciers, typically forming in drainages on the sides of a mountain, develop bowl-shaped basins called cirques (sometimes called 'corries' – from…
Nunataks in Antarctica
Cântaro Magro, Serra da Estrela, Portugal, formed as a nunatak during the last ice age and now exposed.