Drilling very deep holes has been done before ... one of the hardest rocks on Earth. It heats the stone to around 3,000 ...

Your objective is to grab a drill and start your descent down into the earth, moving through various layers of sand, dirt, stone and bedrock until you reach the finish line deep below the surface.

If the drilling is successful ... public safety and wildlife — and it is a dangerous stepping stone to massive amounts of pollution in the Boise River headwaters from an open pit mine ...