In academic, historical, and archaeological circles, A. Dates are determined by a variety of processes, including chemical analyses (as in radiocarbon dating and thermoluminescence), data correlation (as in dendrochronology), and a variety of other tests. Acheulean - A stone tool industry, in use from about 1.6 million years ago until 125,000 years ago.

Join us on a dig at the Haynie site, a Chaco outlier!

You’ll excavate alongside Crow Canyon archaeologists and help us understand a defining time in Pueblo Indian culture.

Many ancient peoples, such as the Egyptians living along the Nile, depended on annual floods and alluvial deposits to replenish the soils they were farming.

Alluvial soils are usually nutrient-rich and good for agriculture.

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Crow Canyon is a 501(c)(3) not-for-profit organization located near Mesa Verde in southwest Colorado.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES—Researchers report ages of Neanderthal remains using an improved dating technique.Neanderthal remains from Vindija Cave in northern Croatia have been previously dated at approximately 32,000 years old, making them the most recent known Neanderthal remains and implying considerable temporal overlap between Neanderthals and modern humans in Central Europe.Bronze is an alloy of copper and either zinc or tin.Alluvial Deposit - Soil deposited by running water, such as streams, rivers, and flood waters.Aerial Photography - The various techniques of taking photographs of natural or cultural features from the air, using balloons, airplanes, satellites, and other sources, in order to study the features in their entirety from a top-down (bird's eye) view.