Wardens of Sulfur Gulch

From publisher blurb:

A Pathfinder Society Scenario designed for levels 7–11.

Among the earliest Pathfinders was the Gojan the Sharp, famed for his studies of the technology-strewn wasteland of Numeria before he disappeared forever into the infamous Silver Mount. The Pathfinder Society has uncovered a forgotten cache of Gojan’s Numerian journals identifying sites unknown even to the local barbarian chieftains. The time is right to unearth a pristine piece of alien technology! However, Pathfinders should remember that for every untouched marvel that remains, an unblinking sentry may lie in wait.