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Floodwater Farming, Discontinuous Ephemeral Streams, and Puebloan Abandonment in Southwestern Colorado

Published online by Cambridge University Press:  20 January 2017

Gary A. Huckleberry  and
Brian R. Billman
Gary A. Huckleberry
Affiliation:
Department of Anthropology, Washington State University, Pullman, WA 99164-4910
Brian R. Billman
Affiliation:
Department of Anthropology, University of North Carolina, 301 Alumni Building, CB# 3115, Chapel Hill, NC 27599-3115
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Abstract

Geoarchaeological study on the southern piedmont of Sleeping Ute Mountain in southwestern Colorado indicates the presence of discontinuous ephemeral streams that were the foci of episodic Puebloan occupation between A.D. 600s and 1280. Characterized by arroyos, discontinuous ephemeral streams contain alternating aggrading and degrading reaches and are well suited for ak chin floodwater agriculture. Episodic Puebloan abandonment of the southern piedmont correlates with periods of drought but does not appear to be linked to stream entrenchment. We question a priori assumptions of droughts correlated to stream entrenchment and urge caution in the use of drought-arroyo models for settlement shifts in alluvial flood plains without supporting stratigraphic or geomorphic evidence.

Résumé

Résumé

Estudios geoarqueológicos en la bajada sur de Sleeping Ute Mountain, ubicada en el suroeste de Colorado indica la presencia de corrientes efímeras descontinuos que fueron los centros de asentamiento periódicos desde d.c. 600s hasta d.c. 1280. Estos arroyos efímeros condemn bancos y harrancos, y son ideales para la forma de agricultura que utiliza agua de inundaciones, llamada ak chin. El abandono periódico de los pueblos en la bajada sur se correlaciona temporalmente con épocas de aridez, pero no corresponde a la erosión de los canales. No creemos que todas las sequías se correlacionan con erosión en toda la vertiente, y recomendamos cautela en el uso del modelo de sequía-arroyo como indicación de cambios en los asentamientos de sistemas fluviales sin datos apoyados por estratigrafía or geomorfología.

Type
Reports
Information
American Antiquity , Volume 63 , Issue 4 , October 1998 , pp. 595 - 616
Copyright
Copyright © The Society for American Archaeology 1998

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