Harvey Steiman specialized in covering which geographical wine regions?

Harvey Steiman is well-known for his expertise in wine journalism, particularly focusing on California wines as well as those from the Pacific Northwest region. His work has highlighted the diverse and innovative wine production occurring in these areas, showcasing the unique terroirs and varietals that each region offers. California is renowned for its varied climates and wine styles, while the Pacific Northwest, which includes regions like Washington and Oregon, has gained recognition for its high-quality wines, particularly Pinot Noir and Cabernet Sauvignon. Steiman's coverage often emphasizes the evolving quality and trends in winemaking within these regions, making them significant in the context of modern viticulture and consumer interest in U.S. wines.