The Mariner Valley shipyard was a Martian Congressional Republic Navy shipyard located at the Mariner Valley on Mars. At this location MCRN ships are broken down and/or refitted.


The shipyard contains space within its dome for numerous capital ships to be maintained or stripped down. The facilites contain many stores with military equipment.


After her dishonorble discharge Bobbie Draper got a job working as a demolition tech third-class[1] during which she worked on a Donnager-class.

When blackmailed to get her nephew back Bobbie leaves open a store room door. She waits nearby and notices that the two men to enter the store to steal from it are actually Belters disguised in MCRN uniforms[2]



  1. The Expanse TV Series - Season 4, Episode 2: "Jetsam"
  2. The Expanse TV Series - Season 4, Episode 3: "Subduction"
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