Abstract:
This report provides a statewide mineral database in dBASE III+ format that can
be imported to computerized geographic information systems (GIS), such as those
being used by the U.S. Bureau of Land Management (BLM), U.S. Bureau of Mines
(USBM), U.S. Forest Service (USFS), U.S. Geological Survey (USGS), agencies of
the State of Oregon, Oregon counties, and the private sector. This computer
data
... base gives location, commodity, and other data for an estimated 7,899
mineral occurrences, prospects, and mines in Oregon. Because each site has
latitude, longitude, and Universal Transverse Mercator (UTM) coordinates, this
layer can be used with many geographic information systems. The data base has
utility for local, county, state, and federal planning; for exploration and
mining firms; and for other private interest groups.
Data sources include the USGS CRIB/MRDS and USBM MILS main frame data bases of
mineral occurrences, prospects, and mines. For Oregon, these data are complete,
up-to-date, and acceptably uniform in geographic coverage. However, these data
bases have not been added to since 1981 data were downloaded into dBASE III+.
Of the 429 USGS CRIB/MRDS fields, 89 were selected by a committee of federal,
state, and county agencies as those that were needed for each agency's planning
efforts. After two years of use, recommendations were received from agencies
and private parties on which fields should be eliminated, combined, and/or
added. Changes were made so that the database now has 84 fields. The records in
the federal data bases were edited by the Oregon Department of Geology and
Mineral Industries (DOGAMI) professional staff. Duplicate records were
eliminated. An additional 2,755 records from the DOGAMI Mined Land Reclamation
program are included in the data base as of December 1992. There are now a
total of 7,899 mineral occurrences, prospects, exploration targets, and mines
in the data base. Data Description As in all data bases, the field name given
to a data field may not explain adequately what is in that field.
This data set is part of the Inforain project which allows users to better
understand their watershed. This data goes along with other data sets from the
Inforain project. 
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