Upstream is the poisonous Berkeley pit, an open-pit mine in Butte, which was once called the Richest Hill on Earth for the quantities of gold, silver and copper mined there.

This has extremely vital significance for production of open-pit mine and maintenance safety of operating personnel and the equipment.

Adding the regularity measure as an additional objective function to a general open pit mine short term production scheduling model, this paper formulates a new model with practicality objective.