1. Map showing outcrops of pre-quaternary ash-flow tuffs and volcaniclastic rocks, basin and range province, Utah Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Denver, Colorado : Open-File Services Section, Western Distribution Branch, U.S. Geological Survey Resource Type: Map Access & Availability: Loading
2. Map showing outcrops of pre-quaternary ash-flow tuff and laharic breccia, basin and range province, New Mexico Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Denver, Colorado : Open-File Services Section, Western Distribution Branch, U.S. Geological Survey Resource Type: Map Access & Availability: Loading