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All News and Pages Related to "Iowa DNR"

Looking to the Future

Posted on May 13th, 2014

The year 1992 marked the centennial of a state geological survey in Iowa. The U.S. Geological Survey celebrated its centennial in 1979. The Geological Society of America celebrated its centennial in 1988, with its ambitious Decade of North American Geology (DNAG) publications project now completed. Our staff’s comprehensive stratigraphic review of the geologic section in […]

Geologic Hazards

Posted on April 30th, 2014

Earthquakes Iowa Geological Survey geologists have information on historic Iowa earthquakes and significant earthquakes in other areas of the midcontinent. Only 12 earthquakes with epicenters in Iowa are known in historic times. The first known occurred in 1867 near Sidney in southwest Iowa, the most recent in 1948 near Oxford in the east-central part of […]

NRGIS Library now Iowa Geodata

Posted on April 30th, 2014

The DNR’s NRGIS Library has been retired. Visit Iowa Geodata The Library’s data has been merged into Iowa Geodata, the State’s clearinghouse of geospatial data. This is a collaborative space for users and publishers of geospatial data about Iowa. Proposed in 1988, and implemented by 1993, the NRGIS Library quickly became one of the largest […]