Image Missing: Hearst Museum object titled Weight, accession number 18-1080b, described as Stone (basalt) weight in 2-ply nylon cordage net. Length stone ca. 26 cm. Stone, when in place, hangs on front door with nylon cordage. Used to catch large river fish (up to 130 pounds). Set in water 2 1/2 to 5 feet deep, on bottom shelf adjacent to deeper water. Some fencing places at mouth in increase effective area and channel fish into trap. Door falls when fish disturbed trip strings inside. When used: when river level is fluctuating, best in rising or falling water levels. Used by men only. These traps are seldom sold, as they are so lucrative that the specialists like to restrict their spread. Manufacture requires special skills. The cross stick on top with natural holes is charm to bring luck.