Alberta sulfur pyramids (nonfiction)

Alberta sulfur pyramids. (Photo by Jason Woodhead.)

The Alberta sulfur pyramids are a group of three large pyramidal structure composed primarily of sulfur located in Alberta, Canada.

The sulfur is produced as a waste byproduct of petroleum extraction and processing by Canadian oil company Syncrude.

Fiction cross-reference

• Comer's Midden Monster - attracted to aroma of sulfur.

Nonfiction cross-reference

• Petroleum (nonfiction)

External links:

• Athabasca oil sands @ Wikipedia

http://boingboing.net/2016/07/05/the-great-sulphur-pyramids-of.html