Well Log Stratigraphic Interpretations in the Columbia Plateau, Idaho, Oregon, and Washington (sir2010-5246_strat)

These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release. As part of a U.S. Geological Survey Groundwater Resources Program study, a three-dimensional geologic model was constructed for approximately 53,000 square miles of the Columbia Plateau in Idaho, Oregon, and Washington. This model was constructed to define the general aquifer system geometry for use in a regional numerical groundwater flow model. Simplifications and assumptions consistent with this ultimate goal and with the uncertainty in the available [...]