
These blocky andesite lava flows from Trident Volcano were emplaced during an extended
eruptive period between 1953 and the mid-1960's. Trident Volcano is composed of a
cluster of andesite and dacite cones and is the only Katmai group volcano other than Katmai and Novarupta to have had historical activity. Photograph by T. Miller, U.S. Geological Survey, July, 1974.
Citation Information:
Image courtesy of AVO / U.S. Geological Survey.
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..."