The U.S. Geological Survey's National Coal Resources Data System comes with an interactive map that provides a huge amount of information on the distribution, thickness, and classification of coal in the United States.
The interactive map contains over 250,000 data points, each typically representing a core sample, drill hole, or driller's log in a specific location. You can use the "Filter" tool to focus in on specific areas, or on data collected by specific organizations. Commonly available data include:
Tar sands (also called oil sands) are a mixture of sand, clay, water, and bitumen. Bitumen is a thick, sticky, black oil that can form naturally in a variety of ways, usually when lighter oil is degraded by bacteria. Bitumen has long been used in waterproofing materials for buildings, and is most familiar today as the binding agent in road asphalt.
Representative Duncan Hunter (R-CA-50) introduced the "Materials Essential to American Leadership and Security (METALS) Act" (H.R.1407) to ensure the U.S. has access to a sustainable and secure supply of materials to safeguard our national security on March 7.
The Montana Bureau of Mines and Geology announced its 2017 Symposium will happen in October, 2017. It is billed as "a forum where professionals, students, and amateurs interested in mineralogy and economic geology can share knowledge about mineral occurrences in the northern Rocky Mountain Region." The announcement can be downloaded from this post. For more details visit: https://www.mbmg.mtech.edu.