Volcano.
Vent
a volcanoe
dome
Vent .
A bowl-shaped area that forms around a volcano's central vent is called a crater.
Volcano!
Vent
a volcanoe
Pass
A Crevasse
A mountain formed by the build up of lava and ash is a composite volcanic cone.
dome
The sack worn by mountain men around their necks was called "a bullet pouch."
The Inca Empire settled in the Andes Mountains of South America, with their capital located in Cusco, Peru. They expanded their territory to include present-day countries such as Peru, Ecuador, Bolivia, and parts of Chile and Argentina.
A mountain ridge that separates river systems is called a water shed. They are very common around large rivers and streams around the world.
That's the opening line of "Free Ride" by the Edgar Winter Group.
Someone who builds with bricks is called a brick layer.