Rio del Oso

The Rio del Oso is an intermittent stream in Rio Arriba County, New Mexico, United States. It is a tributary to the Rio Chama after crossing under U.S. Route 84 near Chili, New Mexico (in zip code 87537 between Hernandez and Medanales).

The Rio del Oso just above U.S. Route 84, during drought

The alluvial record in the lower valley of the Rio del Oso is well dated and is unusual in that it includes a single Holocene terrace, a few thousand years old.^[1]

References

^ Hall, Stephen A., and Richard D. Periman. "Unusual holocene alluvial record from Rio Del Osos, Jemez Mountains, New Mexico: Paleoclimatic and archaeologic significance." Archived 2021-09-27 at the Wayback Machine In In: Barry S. Kues, Shari A. Kelley, and Virgil W. Lueth, eds. Geology of the Jemez Mountains Region II; 58th Field conference, New Mexico Geological Society. Socorro, NM: New Mexico Bureau of Geology and Mine Resources: 459–468. 2007.

36°06′42″N 106°09′00″W / 36.11177°N 106.15011°W / 36.11177; -106.15011

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[1] Hall, Stephen A., and Richard D. Periman. "Unusual holocene alluvial record from Rio Del Osos, Jemez Mountains, New Mexico: Paleoclimatic and archaeologic significance." Archived 2021-09-27 at the Wayback Machine In In: Barry S. Kues, Shari A. Kelley, and Virgil W. Lueth, eds. Geology of the Jemez Mountains Region II; 58th Field conference, New Mexico Geological Society. Socorro, NM: New Mexico Bureau of Geology and Mine Resources: 459–468. 2007.

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