Valles Caldera: New Mexico’s Supervolcano

There are six known supervolcanoes on dry land, while some six more are located under the oceans. Three of these supervolcanoes are in the United States: Yellowstone in Wyoming, Long Valley in California, and Valles Caldera in New Mexico. A supervolcano is capable of producing a volcanic eruption with ejecta greater than 1,000 cubic kilometers (240 cubic …

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The Legend of the Grand Canyon’s Egyptian Artifacts

In March and April 1909, the Phoenix Gazette published two stories about the discovery of a great underground citadel hidden in a cave in the Grand Canyon. The first article in March only mentions explorer G.E. Kinkaid and his explorations down the Colorado River. The paper also notes that he made some interesting archeological discoveries, but no …

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