A DY-500-class Earth colony ship that left for the Ficus sector in 2123 under Captain Walter Granger and founded two colonies, the Bringloidi and the Mariposans.
The SS Mariposa was a DY-500-class vessel loaded at the Baikonur Cosmodrome and launched on 27 November 2123, during Earth's recovery from the Third World War. Its captain was Walter Granger.
Its odd cargo, which mixed advanced computers with spinning wheels and livestock, puzzles the Enterprise-D crew in Up the Long Ladder. The ship had carried two groups: followers of a back-to-the-land philosophy, set down on Bringloid V, and a party of scientists bound for a second world.
The Mariposa crashed on that planet and only five scientists survived. Too few to breed, they turned to cloning and named their colony after the ship. Three centuries later both settlements were in trouble, and Picard pushed them to merge.