AVO geologist Tina Neal shows the thickness of ash from the 1912 eruption of Novarupta at Brooks Camp in Katmai National Park, 50 km (30 miles) upwind of the vent.
Image courtesy of the photographer.
Please cite the photographer 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..."