Tom Brigham and Game McGimsey ascend to the caldera rim of Mt. Churchill, 9th highest peak in Alaska to confirm it as the source of the White River ash.
Image courtesy of AVO/USGS.
Please cite the photographer and the Alaska Volcano Observatory / U.S. Geological Survey when using this image.
To obtain a high-resolution image, open the full size
page. Then, right click on the image and click
"Save Image As..." or "Save Picture as..."