Life beneath the earth in Wyo's only underground coal mine - WyoFile

The Bridger Underground Mine’s 2021 closure could end a unique and difficult way of making a living and powering the nation in southwest Wyoming.

WyoFile: As Coal's Future Dims, Uneasiness Permeates Rock Springs - SweetwaterNOW

Locals say DKRW's coal-to-gasoline plant needs more scrutiny - WyoFile

Jim Bridger: Lighting the country, laboring in the dark - WyoFile

Energy Policy – Coyote Gulch

Jim Bridger: Lighting the country, laboring in the dark - WyoFile

i.ytimg.com/vi/1dsxtCmUvrc/hqdefault.jpg

Why a $2 milion coal mine in US's Wyoming could be worth $37 billion - Times of India

PacifiCorp, DEQ pick less power over clean-coal technology - WyoFile

Wind – Coyote Gulch

Powering down: Examining coal's shaky ground from Jim Bridger - WyoFile

Jim Bridger: Lighting the country, laboring in the dark - WyoFile

A closer look at seven of the world's biggest coal mines

Faults in a long-wall operation in an underground coal mine.

Schematic view of the in situ underground coal gasification principle

What was the deepest coal mine in the UK? - Quora

Lackawanna Coal Mine Tour Digging Deeper in Scranton - PA Bucket List

Coal face hi-res stock photography and images - Alamy

Opportunities and Challenges in Deep Mining: A Brief Review - ScienceDirect