News

Pacific Coast Coal Company’s Mine No. 11 in Black Diamond | Historical

In the mid-1920s, Pacific Coast Coal Company’s Mine No. 11 in Black Diamond was nearing the end of it economic life.  - Photo provided by Bill Kombol
In the mid-1920s, Pacific Coast Coal Company’s Mine No. 11 in Black Diamond was nearing the end of it economic life.
— image credit: Photo provided by Bill Kombol

In the mid-1920s, Pacific Coast Coal Company’s Mine No. 11 in Black Diamond was nearing the end of it economic life. With its impending closure, Pacific Coast Coal undertook development of a new underground coal mine beneath Cedar Mountain, about half-way between Maple Valley and Renton. To access the coal, Pacific Coast constructed a mile-long tunnel under Cedar Mountain from the Renton-Maple Valley highway near the Cedar River towards Lake Desire. This 1925 photo shows what was called the rear entrance to the mine and comes courtesy of the Renton History Museum. This “rear entrance” would have been located just south of a site on SR 169.

Photo provided by Bill Kombol

EMAIL NEWSLETTERS

Latest news, top stories, and community events,
delivered to your inbox.

We encourage an open exchange of ideas on this story's topic, but we ask you to follow our guidelines for respecting community standards. Personal attacks, inappropriate language, and off-topic comments may be removed, and comment privileges revoked, per our Terms of Use. Please see our FAQ if you have questions or concerns about using Facebook to comment.

Read the latest Green Edition

Browse the print edition page by page, including stories and ads.

Oct 1 edition online now. Browse the archives.