The extension will enable the production of approximately 39.9mt of federal coal, while supporting 280 full-time jobs.

The Trump administration approved a plan to expand a Montana coal mine and extend its life by 16 years, the Interior Department said on Thursday, a move aligned with President Donald Trump's goal to increase U.

The Interior Department approved a federal mining plan modification by the Office of Surface Mining Reclamation and Enforcement for the Spring Creek mine in Big Horn County, Montana, operated by Navajo Transitional Energy.