KUON GEO

Arnus Vallis

Vallis, valles · 311.6 km across · 13.97°, 70.61° · Mars
谷・差し渡し約311.6km

WHY THAT NAME · なぜその名前か

Classical and present day Arno River in Tuscany, Italy (previously named Arena Rupes).
Source of the name: Italy (Europe) · Approved by the IAU 1982 · Other features named after Italy

SEE IT · 地図で見る

Elevation here was measured by laser from orbit (MOLA), and the night-time infrared comes from THEMIS.
Open the map centred on Arnus Vallis

NEAREST NAMED FEATURES · 近くの地名

What stands next to a place tells you what kind of place it is.
Arena Dorsum 尾根122 km
Toro クレーター195 km
Syrtis Major 地形245 km
Nili Tholus 丘343 km
Syrtis Major Planum 台地349 km
Nili Patera 火口357 km
Negril クレーター375 km
Meroe Patera 火口428 km
Great-circle distances on a sphere of radius 3,396.19 km.
Names and their origins come from the IAU Gazetteer of Planetary Nomenclature (USGS Astrogeology), retrieved 2026-08-14.
All named features ｜ KUON MARS map ｜ About the map ｜ The temperature on Mars ｜ How far away Mars is
DATA: IAU / USGS Astrogeology · NASA MGS MOLA · NASA Mars Odyssey THEMIS