You don't keep future civilizations out of the nuclear waste dump by making it look like the cover art for a metal album. You keep them out by making it look like the cover art for a Spin Doctors album
This is
Not a place of honor
That's what I said now
Dig here
And you might be a goner
Just go ahead now
There is
Danger in your time still
Just as in ours now
Do not
Linger long or you will
Get sick and die now