Immediately to the north of the remnants of the northern crater wall lies a large and elongated lunar dome termed Fracastorius 1, with an evident vent on its surface.

1 , while Gambart 3 is situated between classes C.

Gassendi 1 is another bisected dome, like the domes located near Rima Birt. The dome has a diameter of 7. It belongs to class C. 2 in the classification scheme of possible lunar intrusive domes.

Herodotus 1, with its moderate to steep slope of 2. 5 km, large edifice volume of 21 cubic km, belongs to class B. 1 of the effusive lunar domes. It is characterized by a shallow vent about 200 m depth and 3 km long. The steep Herodotus 1 dome formed out of lava of high viscosity and over longer period of time than lower class B.