830-year-old explosion deposit
![830-year-old explosion deposit](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/image1-1360.jpg?itok=vB0hmrpw)
Detailed Description
This light gray block of rock (backpack for scale) is part of the approximately 830-year-old explosion deposit on the northwest rim of Moku‘āweoweo, the summit caldera of Mauna Loa.
Sources/Usage
Public Domain.