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 9, 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 9, 2026
Sources
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