Strange Stones III

Beatrix is still searching for strange stones. Recently, she caught a promising lead from Holger, after emptying her pantry to feed him. Holger said that he found 2 strange stones in Black Rock Canyon, but he doesn't remember where, although he did remember eating beef jerky when he found the stone with 4 runes on it. After searching for several days, Beatrix found the stone with 4 runes on it, but it doesn't react with the other stones you found for her. Can you find the other stone?