The Pali Aike Crater is an extinct volcano

Volcano

2. Bedrock3. Conduit 4. Base5. Sill6. Dike7. Layers of ash emitted by the volcano8. Flank| 9. Layers of lava emitted by the volcano10. Throat11. Parasitic cone12. Lava flow13. Vent14. Crater15...

 cone within a series of such crater

Volcanic crater

A volcanic crater is a circular depression in the ground caused by volcanic activity. It is typically a basin, circular in form within which occurs a vent from which magma erupts as gases, lava, and ejecta. A crater can be of large dimensions, and sometimes of great depth...

s in the Pali-Aike National Park

Pali-Aike National Park

The Pali-Aike National Park is a park located in the Magallanes Region of the Chilean Patagonia. Pali-Aike is a Tehuelche name that means Desolate Place. Created in 1970, it covers an area of and includes part of the Pali-Aike Volcanic Field. The park draws its name from a prominent volcanic cone...

. The locale of this crater is a semi-desert. This crater within the Pali-Aike Volcanic Field

Pali-Aike Volcanic Field

Pali-Aike Volcanic Field is a Pleistocene-to-Holocene volcanic field in Patagonia on the Argentina–Chile border, located north of the Straits of Magellan about 150 km northeast of Punta Arenas, Chile. The volcanic field contains lake-filled maars, along with basaltic scoria cones and spatter...

 has an extant lava tube

Lava tube

Lava tubes are natural conduits through which lava travels beneath the surface of a lava flow, expelled by a volcano during an eruption. They can be actively draining lava from a source, or can be extinct, meaning the lava flow has ceased and the rock has cooled and left a long, cave-like...

 which has yielded archaeological traces termed by C. Michael Hogan as potentially some of the earliest recoveries of prehistoric man in the Americas, with dates estimated between 14000 and 10000 yA. This crater's lava tube along with that at Cueva Fell

Cueva Fell

Cueva Fell is a natural cave and archaeological site in southern Patagonia. Cueva Fell is in proximity to the Pali Aike Crater, another significant archaeological site. Cueva Fell combined with the nearby Pali Aike site have been submitted to UNESCO as a possible World Heritage Site.-References:*...

 has been submitted to UNESCO as a possible World Heritage Site

World Heritage Site

A UNESCO World Heritage Site is a place that is listed by the UNESCO as of special cultural or physical significance...

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