Volcanic bombs on the side of a cinder cone at Craters of the Moon National Monument. Photo from the National Park Service.
nps-volc-bombsss by Dr C M Helm-Clark PhD is licensed under a Creative Commons Attribution 4.0 International
nps-volc-bombsss
nps-volc-bombsss by Dr C M Helm-Clark PhD is licensed under a Creative Commons Attribution 4.0 International