This shapefile was extracted from the work done by USGS, mapping the surficial geology for the Columbia River Basin.  The approximate boundary of the pullman_moscow aquifer was extracted from this gis layer. This report is one in a series of digital maps, data files, and
reports generated by the US Geological Survey to provide geologic
process and mineral resource information for the Interior Columbia
Basin Ecosystem Management Project (ICBEMP), a US Forest Service and
Bureau of Land Management interagency project.  The various digital
maps and data files which were provided by the USGS, and which are
available in this and other reports, are being used in a GIS-based
ecosystem assessment which includes a comprehensive analysis of
past, present, and future ecosystem conditions within the general
area of the Columbia River Basin east of the Cascade Mountains.

The goal of the ICBEMP management strategy is to provide management
tools to sustain or restore ecosystem integrity and produce desired
conditions, uses, products, values, and services over the long
term.  The intent of the project is to understand the ramifications
of management practices or disturbances both in the area subject to
the practice or disturbance as well as effects which may be removed,
in time and space, from the area.

Bruce Johnson of the USGS is the primary author for 
the original dataset from which this gis layer was extracted. 
This product would not exist without the input of the many
geoscientists whose work was essential to making both state geologic
maps and mineral resources databases.  This effort would not be
possible without those past products and others from the following
agencies: the US Geological Survey, the California Division of Mines
and Geology, the Idaho Bureau of Mines and Geology, the Montana Bureau
of Mines and Geology, the Nevada Bureau of Mines and Geology, the
Oregon Department of Geology and Mineral Industries, the Utah
Geological and Mineral Survey, the Geological Survey of Wyoming, and
the Washington State Department of Natural Resources.

USGS geologists, Thor Kiilsgaard and Fred Miller, provided useful
advice about regional geology and the identification of unlabeled
features on the published state geologic maps.  Art Bookstrom, Steve
Box, Jim Evans, Tom Frost, and Michael Zientek, USGS geologists,
contributed to the development of the major lithology classification
scheme and to the classification of individual bedrock units for the
map.

We particularly acknowledge Patrick Geehan, the Bureau of Land
Management project coordinator for the Interior Columbia River Basin
Ecosystem Management Project, for recognizing the importance of
geology to ecosystem management and for supplying funds to digitize
the Washington, Idaho, and Montana state geologic maps.

publication date

None

This data should be used at the 1:500,000 scale.

ESRI feature type: Simple, Geometry: Polygon, Topology: 

Complete

https://pubs.usgs.gov/of/1995/of95-680/

The information depicted in this GIS layer is the result of digital analyses performed on a database consisting of information from a variety of governmental and other credible sources.  The accuracy of the information presented is limited to the collective accuracy of the database on the date of the analysis.  The information is believed accurate and reasonable efforts have been made to ensure the accuracy of the data.  However, the Idaho Department of Water Resources expressly disclaims responsibility for damages or liability that may arise from use of this data.  This product is the property of the Idaho Department of Water Resources and its use is thereby restricted.