Aeromagnetic map of the El Malpais Instant Study Area and adjacent areas, Valencia County, New Mexico

The Federal Land Policy and Management Act (Public Law 94-579, October 21, 1976), requires the U.S. Geological Survey and the U.S. Bureau of Mines to conduct mineral surveys on certain areas to determine their mineral resource potential.  Results must be made available to the public and be submitted to the President and the Congress.  This report presents the results of a mineral survey of the El Malpais Instant Study Area and adjacent areas, Valencia County, New Mexico.