P3X-116 is a world of trees and grassy plains. Tanith had been scouting the planet for a new Goa'uld base, and SG-1 had spotted him and a small contingent of Jaffa on the ground. However, a death glider discovered SG-1's position, and in the ensuing battle as SG-1 retreated through the stargate, Tanith was killed when his alkesh was shot down by Teal'c.
Episode Reference: 48 Hours
Stargate Coordinates: 21-13-26-17-?-?