The Crumbling Lands was a region on Moorja known for its rocky terrain, sandstone formations and eroded gullies. The sedimentary rock strata of the area had been heavily eroded by water, and further undermined by the burrowing of the reptilian bruwoses that inhabited the region.
Six months after the Battle of Endor, Dirk Harkness and the Black Curs landed on Moorja after their reconnaissance of the Core Worlds. Harkness ventured alone into the Crumbling Lands to retrieve a Y-wing he had hidden there. While traveling, he was trapped by three bruwoses but was aided by New Republic agents shortly after.