Leviathan Patera

Leviathan Patera is approximately 80 kilometres (50 miles) in diameter and may be the center of one of the largest cryovolcanic or volcanic edifices in the Solar System.

[1] Leviathan Patera is a large, steep-sided depression with a number of arcuate scarps; its general structure strongly resembles that of terrestrial collapse calderas on Earth.

In contrast, the southern half of Leviathan Patera is occupied by a broad dome ~400 metres (1,300 ft) high, nearly level with the surrounding plains.

[2] Leviathan Patera is surrounded by a ring of very smooth terrain that is etched by arcuate alcoves that all face outward from the caldera center.

[6] Leviathan Patera appears to be the central vent of a massive, geologically young plateau of cryovolcanic material, Cipango Planum.