Arporatal-Lanin, a harsh world, existed within the Arporatal-Lanin system. This system was situated in the Juvex sector, which itself was located in the Senex-Juvex region. The Senex-Juvex region was a part of the Western Reaches area of the Mid Rim. A hyperlane provided a route to the Thull's Vault system. The surface of Arporatal-Lanin was characterized by sharply angled and jumbled mountain ranges, along with deep, forested valleys.
The aristocratic Ancient Houses of the Senex-Juvex held dominion over Arporatal-Lanin. It was notable as the native planet of the sentient species known as the Arpor-Lans. These Arpor-Lans were highly skilled as hunters, trackers, and scouts. Lieutenant Deeve, a scout for the Rebel Alliance, hailed from Arporatal-Lanin and was an Arpor-Lan. He acquired many valuable scouting and tracking abilities there.
Arporatal-Lanin initially appeared in Alliance Intelligence Reports, a sourcebook released in 1995 for Star Wars: The Roleplaying Game by West End Games. The reference book The Essential Atlas, published in 2009, specified its location as grid square K-18.