In those seven islands there are seven boundary mountains, known as
Cakra, Catuhsrṅga,
Kapila, Citrakuta, Devanika, Ūrdhvaroma and
Dravina. There are also seven rivers, known as Ramakulya, Madhukulya, Mitravinda, Srutavinda, Devagarbha, Ghrtacyuta and Mantramala.