May 9, 2007, HiRISE release

Could each of these crater wall gullies have formed in a single flow event, or would it require multiple events to carve them?

Given the apparent anastamosing patterns, channel incision depths, and the morphology of the debris fans, I would argue multiple events.

Interesting. Thank you. Is it just me, or is this one of the most interesting craters MRO has imaged in detail?

I agree, it is an interesting crater. Moreover, I'm reminded of an earlier HiRISE release we discussed back in January. This synoptic-type view (at high-res) of an entire crater with gullied walls gives good indications of the features associated with Christensen's gullies formation model (e.g., "pasted-on terrain").

If I understand Christensen correctly, sites such as this could be excellent locations for surface exploration seeking past or current conditions favorable to life. I wonder if any of the proposed MSL landing sites include a location like this? (Not that I remember seeing, but I doubt I've seen all of them).

I presume you're referring to Christensen's THOR concept.

As for MSL, I haven't correlated any of Christensen's "pasted-on" terrains to proposed MSL landing sites, but it is an interesting idea.

I was just referring to the "pasted on" model. I didn't know about THOR, so thanks for that.