The volumes of the four summit depressions on Hecates Tholus range from [?
In contrast, we saw earlier that, at the martian volcano Hecates Tholus, a large explosive summit eruption is implicated in the formation of at least one of its calderas.
The word tholus is derived from the Greek word tholos, and means a small dome-shaped hill or mountain (tholos means a circular building with a conical or vaulted roof).
Kwanzaa Tholus is in the northeastern part of Ceres, and measures about 22 by 12 miles (35 by 19 kilometers), rising about 2 miles above its surroundings.
In the images, Kwanzaa Tholus appears just above and to the right of the center, conspicuous by a sliver of a shadow in the monochrome photograph and appearing like a light-blue, strangely-angled "D" in the elevation image.
There are a large number of tholi (plural of tholus) in the vicinity of Kwanzaa Tholus, and the region is also home to slightly bigger mountains called montes.
At some point in Ceres' past, Kwanzaa Tholus may have been as prominent as Ahuna Mons, the most noticeable mountain on the dwarf planet, because it is also the tallest.