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Oregon: A Geologic History
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150 Years of Statehood, 150 Million Years in the Making!
The spectacular landscape of today's Oregon was shaped over millions of years by fire and flood, earthquakes and eruptions, and the movement of oceans and continents on a huge scale. Learn more with the release of "Oregon: A Geologic History" (Interpretive Map 28, by Ian P. Madin). This map was created for anyone who is curious about our State's remarkable geology. On this huge 4 foot by 5 foot full color map, a timeline outlines important events in Oregon's (and the earth's) geologic history. Each rock layer has its own story and you can find out where to go to see the rocks for yourself. World class geologic events are highlighted, and there are plenty of factoids to keep you intrigued to learn more.
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Portland area lidar imagery quadrangles available
2-2-2010 - Beaverton, Camas, Canby, Damascus, Dixie Mountain, Dundee, Estacada, Forest Grove, Gladstone, Hillsboro, Lake Oswego, Laurelwood, Linnton, Mount Tabor, Newberg, Portland, Redland, Saint Helens, Sandy, Sauvie Island, Scholls, Sherwood quadrangles at 1:8,000 scale now available.
Preview smaller images from the Lidar Publications page.
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Lidar Data Quadrangle data available
DVDs in the Lidar Data Quadrangle (LDQ) series (data only) cover both individual and bundled USGS quadrangles. These data are part of a data publication series that will eventually provide complete lidar data for most of the inhabited areas of the state.
All data are format specific to ESRI GIS format. Data must be viewed using specialty software capable of viewing .shp, geotif, and ESRI grid formats.
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Outstanding and rare rocks and minerals now on display in Josephine County 
Display cases with crystals, meteorites, and rare stones and gems now line the hallways in the basement of the Josephine County Courthouse. Gold and silver ore samples collected in Josephine County are also part of the new displays that are on loan to the County from the Oregon Department of Geology and Mineral Industries.
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DOGAMI Publications Search
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Statewide Seismic Needs Assessment
Final results of the Oregon Department of Geology and Mineral Industries' work on the statewide seismic needs assessment of Oregon education and emergency services buildings, as directed by the 73rd Legislative Assembly (Senate Bill 2, 2005).
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In brief....
Next DOGAMI Governing Board Meeting
Friday, March 26, 2010, 8:30 AM
Portland State Office Building, Suite 965
Portland, OR
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New landslide maps of Canby quadrangle released
The Oregon Department of Geology and Mineral Industries has released four maps in one publication showing historic and pre-historic landslides in the Canby quadrangle, which includes portions of Oregon City, West Linn, New Era, Barlow, and Canby in Clackamas County, plus small portions of Washington and Linn Counties.
Publication: DOGAMI Interpretive Map 29 (IMS-29), Landslide inventory maps for the Canby quadrangle, Clackamas, Marion, and Washington Counties, Oregon, by William J. Burns. Scale: 1:8,000. 4 plates. Plate size: 36 x 42 inches.
IMS-29 mapped using Special Paper 42, Protocol for Inventory Mapping of Landslide Deposits from Light Detection and Ranging (Lidar) Imagery, by William J. Burns and Ian P. Madin; SP-42 is included with the IMS-29 publication.
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New report looks at coastal erosion in southern Clatsop County
DOGAMI Open-File Report O-09-06, Coastal Erosion Hazard Zones in Southern Clatsop County, Oregon: Seaside to Cape Falcon, by Robert C. Witter, Thomas Horning, and Jonathan C. Allan, describes the methods and results used to develop a GIS (Geographic Information System) map database that delineates the coastal geology of southern Clatsop County and defines coastal erosion hazard zones for use by county and local planners. The publication comprises 39 pp. plus map PDFs and GIS data.
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Oregon Geology, vol. 69, no. 1 (Fall 2009) 
Field guides of Portland and Oregon's "supervolcano" featured in new issue of Oregon Geology magazine.
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American Reinvestment and Recovery Act (ARRA): "The Oregon Way"  |
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