Valles on Mars
157 named features carry the IAU descriptor Vallis — a valley on Mars, out of 249 in the mapped Solar System.
Named
157
of 2,049 named places on Mars — 7.7%
Largest
3,761 km
Valles Marineris
Median size
200 km
Across the 157 with a measured diameter
Named between
1973–2025
IAU approval dates
How valles on Mars get their names
The IAU assigns each feature class on each world a naming theme. Across the 155 valles with a recorded origin, 72 categories appear, led by Italy.
Italy14France12Greek10United States9Spain7Great Britain5Turkey5Ireland4
All 157 valles on Mars
Every one has its own page, on the surface it sits on.
Valles Marineris3,761 kmAres Vallis1,758 kmTiu Valles1,720 kmKasei Valles1,580 kmMaja Valles1,515 kmMarikh Vallis1,147 kmReull Vallis1,052 kmShalbatana Vallis1,029 kmMamers Valles1,020 kmSimud Valles988 kmHrad Vallis974 kmMa adim Vallis913 kmMangala Valles900 kmDao Vallis794 kmLoire Valles790 kmGranicus Valles778 kmNaktong Vallis670 kmSamara Valles662 kmMawrth Vallis635 kmNirgal Vallis610 kmAl Qahira Vallis600 kmLiris Valles596 kmNanedi Valles550 kmMad Vallis537 kmEnipeus Vallis527 kmHarmakhis Vallis527 kmLouros Valles516 kmNavua Valles500 kmChico Valles446 kmNaro Vallis443 kmVichada Valles438 kmAxius Valles436 kmTinjar Valles401 kmMaumee Valles390 kmRavius Valles388 kmBrazos Valles388 kmTisia Valles384 kmMorava Valles364 kmNiger Vallis360 kmEvros Vallis358 kmUzboi Vallis354 kmLocras Valles351 kmJhelum Vallis351 kmAuqakuh Vallis347 kmRahway Valles346 kmSungari Vallis345 kmGrjota Valles344 kmIndus Vallis342 kmHuo Hsing Vallis332 kmParana Valles329 kmDzigai Vallis327 kmHebrus Valles325 kmArnus Vallis312 kmRubicon Valles308 kmCoogoon Valles300 kmOkavango Valles285 kmSabrina Vallis280 kmAthabasca Valles270 kmBahram Vallis270 kmScamander Vallis269 kmMoa Valles265 kmProtva Valles260 kmLabou Vallis258 kmFrento Vallis251 kmCusus Valles250 kmBashkaus Valles247 kmRhabon Valles245 kmLadon Valles245 kmHavel Vallis240 kmDurius Valles240 kmLicus Vallis240 kmLethe Vallis237 kmMarte Vallis231 kmWaikato Vallis228 kmHypanis Valles220 kmSabis Vallis213 kmWarrego Valles205 kmNen Valles203 kmTader Valles200 kmVistula Valles193 kmTinto Vallis192 kmMosa Vallis192 kmTrebia Valles180 kmElaver Vallis179 kmHimera Valles175 kmArda Valles174 kmPatapsco Vallis173 kmAllegheny Vallis171 kmOltis Valles169 kmOsuga Valles164 kmDrava Valles159 kmDittaino Valles157 kmSilinka Vallis151 kmRavi Vallis149 kmClasia Vallis147 kmTagus Valles145 kmTeviot Vallis144 kmNia Vallis140 kmDoanus Vallis140 kmPallacopas Vallis135 kmBuvinda Vallis134 kmVerde Vallis133 kmOchus Valles127 kmItuxi Vallis123 kmApsus Vallis122 kmDrilon Vallis119 kmVedra Valles118 kmHer Desher Vallis117 kmClota Vallis114 kmTigre Valles103 kmTyras Vallis99.1 kmHuallaga Vallis92.5 kmVarus Valles90.1 kmMinio Vallis90 kmNapo Vallis87.5 kmIberus Vallis87.3 kmColumbia Valles84.8 kmSurinda Valles80.1 kmLobo Vallis80 kmFarah Vallis76.4 kmStura Vallis75 kmKarun Valles64 kmSava Vallis62 kmMatrona Vallis61.3 kmAbus Vallis61 kmSepik Vallis59 kmClanis Valles58 kmPadus Vallis57.4 kmTana Vallis56.5 kmTermes Vallis55.6 kmAnio Valles54 kmDeva Vallis53.7 kmHermus Vallis53.3 kmDaga Vallis49.9 kmDubis Vallis45.4 kmAsopus Vallis40.8 kmNestus Valles38.3 kmHypsas Vallis36.5 kmRuna Vallis36 kmPeace Vallis35.2 kmDulce Vallis32.5 kmSurius Vallis30.8 kmPliva Vallis30 kmSubur Vallis26.2 kmSakarya Vallis26 kmWalla Walla Vallis23 kmNicer Vallis22.6 kmSenus Vallis22.2 kmZarqa Valles21.4 kmTinia Valles17.8 kmNeretva Vallis17 kmPeriyar Vallis11 kmTaus Vallis10.4 kmMunda Vallis9.1 kmGediz Vallis8.3 kmIsara Valles5.4 kmUna Vallis5 km
Valles elsewhere in the Solar System
The same descriptor is used on 4 other worlds, for 92 more features.