The Stock Pile is a visual supporting representation of the amount of dirt brought to the claim from resource claims. It may look like just a pile of dirt, but it's full of gold!
There are four states the Stock Pile can be in:
Empty: There is no dirt being delivered to the Home Claim.
Running Low: Some or all resource claims have been emptied.
Average: The amount of dirt delivered is healthy for the production cycle.
Overloaded: Too much dirt is being delivered and the Wash Plant cannot handle it.