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I spend a lot of time studying the middle reach of the Owyhee River in SE Oregon…both in the field and in the office. You may know that I am in love with the LiDAR data we recently got from this area. Here is another reason:

Failed margin of Pleistocene intra-canyon lava flow.

Failed margin of Pleistocene intra-canyon lava flow.

Check out this image of a catastrophically failed margin of a ~60 ka intracanyon lava flow. In this image I simply combined the high-resolution NAIP imagery with the LiDAR data by altering the transparency of the imagery. It is not draped, just an overlay, but it looks pretty amazing. Check out the pressure features on the lava and, or course, the plexus of brittle fractures in the wasted margin of the flow. The large cracks that are so clear on the image are spectacular and mildly frightening  in the field. Bascially, the area is an amazing mess. Check it out some time if you are in to that kind of thing. This summer I will be taking the UNR geology field camp out here.

Lambert Rocks area, Owyhee River, Oregon

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