Largest canyon in the Solar System
The current largest canyon in the solar system record is 2,485 miles, held by Valles Marineris, set on January 1, 1971. Last checked October 14, 2026.
2,485
miles
Valles Marineris
- Holder
- Valles Marineris
- Record
- 2,485 miles
- Metric
- 4,000 km
- Exact figure
- Over 4,000 km long, up to 7 km deep
- Location
- Mars
- Date set
- January 1, 1971
- Last checked
- October 14, 2026
Sources
- esa.int Background science
- asu.edu Read the source
- Wikipedia Read the source
- britannica.com Outflow channels and oceans
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