Is it? 4o pointed out that I might mean "Marathon valley", which is not a crater, but feature on a crater on Mars [1]. I think it's a more correct answer.
[1] https://en.wikipedia.org/wiki/Timeline_of_Opportunity#2015
Is it? 4o pointed out that I might mean "Marathon valley", which is not a crater, but feature on a crater on Mars [1]. I think it's a more correct answer.
[1] https://en.wikipedia.org/wiki/Timeline_of_Opportunity#2015