P34-353J was a planet in the Milky Way galaxy which held a Stargate and was used as a temporary base of operations by the Tok'ra. The world was practically invisible to the Goa'uld as it lacked both natural resources and strategic value. The planet is covered in a single large desert of sandy dunes and hills that stretch for miles across the surface. The local bedrock under the planet's desert sands contains all otherwise ordinary minerals needed to process and implement the To'kra's crystal tunnels. (RPG: "Friends and Foes: Stargate Season Two")
Captain Samantha Carter learned of the gate address with an implanted memory from her time with the Tok'ra Jolinar of Malkshur. The world was later attacked by a Goa'uld incursion, forcing the Tok'ra who were stationed there to flee. Fortunately for them, the Tok'ra were then taken to their new base, Vorash. (SG1: "The Tok'ra, Part 1", "The Tok'ra, Part 2")