A crater
A hole at the top of a mountain can be referred to as a summit vent or a volcanic crater, depending on whether it is a natural opening or the result of volcanic activity.
The basin shaped crater at the top of a mountain is called a caldera. It forms when a volcano collapses into itself after an eruption, creating a large, circular depression.
A Crater is a bowl shaped depression in the Earth's surface. It could be made by an impacting meteor, an underground land collapse, or perhaps may be found at the top of a volcano [= collapse].A Caldera is of volcanic origin, (but without a noticeable volcanic cone), where there was an eruption after which the magma chamber collapsed and is now filled in. Yellowstone is one notable example, and the Taupo Lake another.
There is a crater on the top of a moon and a volcano.
The top part of a tornado is called "the top"
The name of the hollow landform, found at the top of the volcano is called crater.
The opening of the volcano is called crater. A crater may be large in dimension or deep. This is where the magma erupts.
it's called a crater.
Vent .
It is called a crater.
Caldera.
It is called a volcano, the hole is for the lava to come out.
A hole at the top of a mountain can be referred to as a summit vent or a volcanic crater, depending on whether it is a natural opening or the result of volcanic activity.
The hole in the top of a volcano is known as the crater. It is the opening through which volcanic gases, ash, and lava are expelled during an eruption. Craters can vary in size and shape depending on the type of volcano.
composite volcano
The basin-shaped crater at the top of a volcano is called a caldera. It is typically formed after a volcanic eruption causes the volcano to collapse inward, creating a large depression. Calderas can range in size from a few kilometers to tens of kilometers in diameter.
The mouth of the volcano.