Orshan was the main continent on the Delta Quadrant planet Praja. This continent was extremely rich in mineral resources such as duranium.
This was the location of the main Cambrog colony devastated by the botanical plague. Most of the planet's population resided on this continent were their crop fields were located as well as their mining facilities.
Chakotay and Neelix found the Cambrog survivors on this continent in 2372. (VOY comic: "Homeostasis, Part One")