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:
Hemerdon Mine. Picture of the Main Opencast at the Hemerdon Ball Mine taken by user of account The picture is released into Public Domain by the author Transferred from org en transferred to Commons by User Liftarn using de php CommonsHelper Original uploader was Southwesterner at org en Released into the public domain