IAU descriptor term
Montes in the Solar System
Mons is the term planetary geologists use for a mountain. 284 named features carry it, across 7 of the 14 mapped worlds, the largest being Tharsis Montes on Mars at 2,059 km.
Where they are
The largest montes anywhere
Ranked across every mapped world, by catalogued diameter.
1Tharsis MontesMars2,059 km2Phlegra MontesMars1,351 km3Nereidum MontesMars1,143 km4Tartarus MontesMars1,087 km5Libya MontesMars1,044 km6Caloris MontesMercury1,023 km7Atanua MonsVenus1,000 km8Var MonsVenus1,000 km9Montes CordilleraThe Moon964 km10Charitum MontesMars934 km11Echoriath MontesTitan930 km12Metis MonsVenus920 km13Nayunuwi MontesVenus900 km14Nyx MonsVenus875 km15Akna MontesVenus830 km16Erebus MontesMars812 km17Danu MontesVenus808 km18Maxwell MontesVenus797 km19Tuli MonsVenus750 km20Hellespontus MontesMars712 km21Montes RookThe Moon682 km22Olympus MonsMars610 km23Bagbartu MonsVenus600 km24Polik mana MonsVenus600 km25Yolkai Estsan MonsVenus600 km26Montes ApenninusThe Moon600 km27Freyja MontesVenus579 km28Dorian MontesIo566 km29Alba MonsMars548 km30Cocytus MontesIo542 km
What they are named after
Naming themes are set per world, so one descriptor can draw on very different sources depending on where it sits. Across all 284 montes, 92 categories appear.
Greek62Latin23England17Italy10Germany10Egypt9India6France6