This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Schematic of Vertical Underground Nuclear Test at the NTS. en Schematic of Vertical Underground Nuclear Test at the Nevada Test Site Nevada National Security Site Tour Booklet ecos org pdf part Federal Government of the United States PDUSGov Uploaded with Nevada Test Site underground nuclear testing