Feature type
Canyon
A deep, steep-sided valley cut by tectonics or water. Mars's Valles Marineris is a canyon system so large it would stretch across the entire United States.
In brief
A deep, steep-sided valley.
Examples of this feature
Knowledge connections
- Group includesValles Marineris
Sources
The primary and reference sources this topic draws on.
- NASANational Aeronautics and Space Administration
Mission data, planetary science, space telescopes, and public-domain imagery.
Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.