Extended local history episode from my neck of the woods.  The Ritchie Mines produced asphalt to pave some of the biggest cities in the world.  Check it out.  (Warning: This one misses the 3 minute mark by a bit.)

Sources:

http://files.usgwarchives.net/wv/ritchie/history/ritchmin.txt

https://www.wvencyclopedia.org/articles/86

http://www.newsandsentinel.com/opinion/local-columns/2017/11/look-back-ritchie-county-mines-railroad-fade-into-history/

http://www.newsandsentinel.com/opinion/local-columns/2017/11/look-back-danger-adventure-in-ritchie-mines/?fb_comment_id=1950219821766236_1993505074104377

Music: https://www.purple-planet.com