Precambrian Basement Map of Wyoming: Structural Configuration (Revised 2023)

The Precambrian basement map of Wyoming, by D.L. Blackstone, Jr. (1993a), has been a primary and authoritative reference for Wyoming geology since its publication. However, the utility of paper maps has abated in recent decades, and the original dataset of wells that served as the backbone to the map was never published. To provide a similarly useful map that accommodates the increasing use of digital geospatial technology, the Wyoming State Geological Survey (WSGS) revised the Precambrian basement map of Wyoming. Well logs, seismic lines, cross sections, and digital elevation models were used to refine and reinterpret the structure of the Precambrian rocks throughout the state. All reference and WSGS-generated data, as well as associated metadata, are organized and publicly available in a U.S. Geological Survey (USGS) standardized geodatabase schema, available from the WSGS website and on the Interactive Oil and Gas Map of Wyoming.