San Luis Obispo County is the gateway to Paso Robles Wine Country, which numbers over 200 wineries, many of them small boutique vineyards. Zinfandel is the area's heritage grape varietal, although the Paso Robles AVA has earned acclaim for its Bordeaux varieties, particularly the Cabernet Sauvignon, as well as a number of innovative Paso Robles blends. Wine tourism is popular for California locals as well as visitors from further afield, who come to enjoy the vineyards along with other area attractions such as Morro Bay, Hearst Castle and the scenic drive up the Pacific Coast Highway. The value of all farms, ranches, and rural real estate for sale in San Luis Obispo County recently was nearly $813 million, representing a total of 43,773 acres of land for sale in San Luis Obispo County. San Luis Obispo County ranks 11th out of 58 counties in California for the total acreage of land currently advertised for sale. Among cities in San Luis Obispo County with land for sale, Paso Robles had the most land for sale. Based on its natural assets, tourism and recreation are important sectors for the San Luis Obispo County economy. San Luis Obispo County is the 18th largest county (3,615 square miles) in California. It's located in the Central Coast California region of the state.