Meanwhile back on Iapetus...

Ron Miller's image from, Out of the Cradle (1984) shows a crew working at a real place- the terminator between the bright hemisphere and the blacker trailing hemisphere.

Today, it may look to us more like Enceladus. Miller painted this before the Voyager enounter with Saturn, which led astronomers to believe Enceladus had ice just like this on the surface. Later it was discovered by the Cassini probe, which is still operating in the Saturn system, that a possible liquid ocean exists on Enceladus, along with cryovolcanism.