Dig up some gold and run some tests on it! Run the heavy driller deep into the cave and then haul out the gold nuggets with the shovel loader. Empty the loader by the lab, so the geologist can analyze what you've found. Take a break and use the tools on the stand to clear up the mess from the drill, or make more! Watch out for the giant spider sitting up on the rocks. It doesn't look very happy to be disturbed by the noisy work!