North Dakota Sand for Fracking -- Bakken, North Dakota, USA

Elsewhere someone raised the question: where are they getting the sand for all the fracking in the Bakken.

Here's a nice start: https://www.dmr.nd.gov/ndgs/newsletter/NLjan2011/Proppants.pdf.

Again, a big thank you to Don for sending me the link to this article. As with other articles, it will be linked at my data page for future reference.