Idiocracy. (2024, September 26). Wikiquote. Retrieved 18:46, April 23, 2025 from https://en.wikiquote.org/w/index.php?title=Idiocracy&oldid=3587794.
Diatomite Mines (Diatomite Pit North), Quincy, Grant County, Washington, USA(mindat.org) Diatomite - middle Miocene (∼15 Ma) freshwater lacustrine deposit located between flows of the Columbia River Basalt Group.