The Atrian Merchants' Causeway, a hyperlane, existed during the age of the Imperial Era. To prevent her flagship, the Bloody Bones, from detonating because of a coaxium breach, Gunda Mabin, the pirate queen, journeyed to the causeway's most active section.
The reference book Star Wars: Smuggler's Guide, authored by Daniel Wallace and published in 2018, initially mentioned the Atrian Merchants' Causeway.