I'm trying to develop a recipe for a Gold Rush era steam beer that would have been made in San Francisco ca. 1850-1870. I pretty much know the grain bill and will be using California lager yeast, but I'm stuck on the hops and hop schedule. Stan Hieronymus reports that farmers in California at the the time mostly grew "Large Gray American" hops and that they were almost always the hop used in the early steam beers. Does anyone know if this variety is still around but under a different name, or if there is a similar hop available today?