Version history: 1.0, online, June 12, 1999. Version 1.1 -- 1.3, June 21 -- Sept. 1999, added online enhancements. CD added Sept. 1999.
Core of publication is new geologic map at scale of 1:63,360 and aeromagnetic and electromagnetic survey data acquired by industry over area of mineralization. Goal is deciphering the relations among volcanism, tectonism, and mineralization.