Caleuche Chasma got its official name from the IAU along with eleven other surface features of Charon on 11 April 2018[3] in response to a proposal by NASA's New Horizons team.

The designation was a part of the Our Pluto initiative by New Horizons, which invited the general public to suggest and vote for names for surface features in the Pluto system.

[4] It did not make to the initial proposal, sent to the IAU by the New Horizons team on 7 July 2015[5] but was included later.

[2][6][7] Caleuche Chasma is roughly a Y-shaped depression, bordering Mordor Macula and located in the highly tectonized highlands of Oz Terra.

Partially separating Caleuche Chasma from Mordor Macula is a large curvilinear ridge; this ridge appears to act as a barrier against the dark material found in the "core" regions of Mordor Macula, as the floor of Caleuche Chasma does not appear to be as dark.