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Prospect Dam is a former lava dam in the Grand Canyon of Arizona, United States. It was the oldest and tallest of several former lava dams in the Grand Canyon. [1] It was formed about 1.2 million years ago as lava flowed down the walls of the Grand Canyon, and temporarily stopped the flow of the Colorado River. [2]
References
- ^ Dalrymple, G. Brent; Hamblin, W. K. (1998-08-18). "K-Ar ages of Pleistocene lava dams in the Grand Canyon in Arizona". Proceedings of the National Academy of Sciences. 95 (17): 9744–9749. doi: 10.1073/pnas.95.17.9744. ISSN 0027-8424. PMC 21407.
- ^ Schmidt, Jeremy (1993). Grand Canyon National Park: A Natural History Guide. Houghton Mifflin. pp. 34–36. ISBN 9780395599327. Retrieved September 4, 2021.