Gus Siltimaki Coal Company's Peacock Underground Mine at Elmo, Wyoming

Notes from Bob Leathers with contribution by Gary Milliken

The Gus Siltimaki Coal Company's Peacock underground mine at Elmo opened production of coal in 1932 and closed in 1941. The mine operated at Elmo for 9 years. During that time, it produced 11,894 tons of coal with a peak work force of 11 workers in 1932. No deaths were reported in the mine.

Gus Siltimaki lived in Elmo. His home is labeled #1 in the image below. It was a large two story house which is now gone. The Gus Siltimaki Coal Company's Peacock underground mine at Elmo was located directly behind his home.

(Gert Milliken Collection from Gary Milliken)

Gus Siltimaki's Peacock Mine Map

Gus Siltamaki's Peacock Mine at Elmo (Map Collection from the Hanna Basin Museum)

2018: Gus Siltimaki's Peacock Mine Today

The Gus Siltimaki Coal Mine was located directly behind his two story home in Elmo. The Wyoming Mine Inspector Reports indicate the Gus Silimaki Coal Company and mine started coal production in Elmo in 1932. Other records indicate the mine was in operation around 1916. In the early years the mine was defined as a wagon mine and not subject to inspections by the Wyoming Mine Inspector.

Long time resident of Elmo, Gary Milliken and long time resident of Hanna, Bob Leathers, explored the Siltamake mine at Elmo. The following pictures by Bob Leathers were taken on that visit.

The street behind the Siltamaki house was named after the coal miner and his mine.

Pictured below is the hill behind the old two story Siltimaki coal mine. The two story house is long gone, but evidence of the mine is till there.