re: North polar geysers?
This is the image containing possible north polar geysers from that report:
Traverse across north polar scarp.
http://ida.wr.usgs.gov/html/e20001/e2000185.html
A follow up to that image is contained here:
North polar defrosting dunes repeat portion of E20-00185.
http://ida.wr.usgs.gov/html/e21002/e2100248.html
The authors of the report also noted the geysers appeared to orginate from dune crests.
Here is a list of MOC images of north polar dunes:
MOC Images of North Polar Dunes.
http://www.markus-harder.de/dunes.html
This may be a good place to start to search for other examples of the geysers.
Bob Clark