Work continues as researchers seek additional information about a series of prehistoric irrigation canals recently discovered along the Santa Cruz River in Tucson that include the oldest canals ever found north of Mexico. Radiocarbon dating on charcoal fragments found in the canals and on plant remains in the different layers of the site indicate the series of canals were constructed between about 3,000 and 2,000 years ago
| Identifer | oai:union.ndltd.org:arizona.edu/oai:arizona.openrepository.com:10150/316629 |
| Date | 07 1900 |
| Creators | University of Arizona. Water Resources Research Center. |
| Publisher | Water Resources Research Center, College of Agriculture, University of Arizona (Tucson, AZ) |
| Source Sets | University of Arizona |
| Language | en_US |
| Detected Language | English |
| Source | Water Resources Research Center. The University of Arizona. |
| Rights | Copyright © Arizona Board of Regents. The University of Arizona. |
| Relation | https://wrrc.arizona.edu/publications/awr |
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