Excerpts from the report: The Westwide Study Area is comprised of all or parts of nine hydrologic regions lying within the 11 states west of or through which passes the Continental Divide. These states comprise 40 percent of the contiguous United States. Tables included in the report: Land and Water Area; Westwide Land and Water Ownership by Region by State; Westwide Surface Cover by Region by State; Percent of Surface Cover Within States; Westwide Selected Land Uses by Region by State; Comparison of Data for Irrigated Land; Irrigated Cropland Harvested; Non-Irrigated Cropland Harvested, 1964; Acres of Crops Harvested by State, 1967; and Output of Timber Products for the United States and Western Region.