A short note here to publicize the latest Iapetus video. This one features a site 300 km to the east of the views I showed a few months ago. In the region the ridge rises 18 km high and is more continuous in length, although there are obvious gaps. Also there are none of the bright ice-rich patches seen in the western site. Here the surface is completely dominated by the dark carbonaceous material that coats the leading hemisphere.
The video itself is posted on Youtube. I have also posted an updated version of the first Iapetus video on a site called ExposureRoom. I believe the ExpRoom posting is higher quality. Both Links are pasted here, so please comment if you like the ExpRoom format.
http://www.youtube.com/galsat400#p/u/0/o6J69uqPVGY
http://exposureroom.com/members/DrSchenk/ab1461b0ab884401b1665b5570089518/