'Graves' in the Bible

And he brought out the grove from the house of the LORD, without Jerusalem, unto the brook Kidron, and burned it at the brook Kidron, and stamped it small to powder, and cast the powder thereof upon the graves of the children of the people.

As Josiah turned around, he observed the graves located there on the mountain, so he sent for and recovered the bones from the graves and burned them on the altar to defile it, in keeping with the message from the LORD that the godly man had proclaimed when he was declaring these things.