Are these another example of the Malin/Edgett gullies:

Floor of trough in Noctis Labyrinthus
http://ida.wr.usgs.gov/html/m10010/m1001062.html

I'm referring to the light colored striping flowing down the side of
the slopes. These are not examples of the light and dark colored
streaks seem often on Mars, since the ones in this case have a depth
to them.
However, they could be due to dry sand flow. See for example this page:

Water on Mars?
http://the-light.com/mars/

I was looking for a dendritic pattern that would suggest liquid
water flow, but this image is rather washed out. The ends of the
flows though do seem to have a digitate pattern, i.e., finger-like.
Liquid water gullies here would be interesting because they are so
near to the equator, 9 degrees south latitude. Malin/Edgett observed
that almost all the gullies were above 30 degrees latitude north and
south of the equator. Was this one of the exceptions they observed?
It has often been argued that near equatorial latitudes would be
desiccated on Mars. However, this Viking orbiter image low lying fogs
over Noctis might be an indication of near surface liquid water here:

Colorful Water Clouds Over Mars
http://antwrp.gsfc.nasa.gov/apod/ap010417.html

Note that Noctis is both low altitude and low latitude so that
daytime conditions will frequently be in the range to permit liquid
water. Important to note that fogs and clouds are composed of either
small liquid droplets or ice crystals, not vapor which is
transparent. Then if the temperature is above freezing at this
location then they indicate liquid water at this site, if the fogs
are sufficiently close to the surface.
Note that in the MGS image there seems to be a blurriness in some
spots which may also indicate low lying fogs. This is a daytime
Spring image. Quite likely the afternoon temperatures exceeded 0 C,
which would indicate the fogs consisted of liquid water droplets.
Anyone know how to get the TES temperature readings at this site at
this time?

Another low latitude location more clearly gives the indication of
low lying fogs:

Cross multiple parallel bands on eastern Sinai Planum.
http://ida.wr.usgs.gov/html/m08078/m0807848.html

Again if the temperature here at this time is above freezing then it
indicates liquid water droplets composing the fogs.

Bob Clark