Bradbury Brook is a small stream in Central Minnesota in the United States. It is a tributary of the Rum River, which drains into the Mississippi. It also the name of an archaeological procurement area ( Smithsonian trinomial: 21ML42) located a few miles south of Mille Lacs Lake along its namesake. Late Paleoindian inhabitants gathered cobbles of

siltstone Siltstone, also known as aleurolite, is a clastic sedimentary rock that is composed mostly of silt. It is a form of mudrock with a low clay mineral content, which can be distinguished from shale by its lack of fissility.Blatt ''et al.'' 1980, p ...

from a streambed or directly from

glacial drift In geology, drift is a name for all sediment (clay, silt, sand, gravel, boulders) transported by a glacier and deposited directly by or from the ice, or by glacial meltwater. Drift is often subdivided into (unsorted and) unstratified drift (glaci ...

. A partially intact stone workshop at this site was dated to 7212 +/- 75 BCE. The siltstone was used to produce a variety of tools, including a stemmed point, other bifaces, keeled scrapers, blades and chipped stone adzes. The workshop also contained several fragmented anvilstones and an abundant sample of hammerstones of various sizes. Archaeologists working at the site found more than 125,000 artifacts, including stone tools, dating to 7212 BCE, making it the earliest dated excavated site in Minnesota.

References

Archaeological sites in Minnesota Geography of Mille Lacs County, Minnesota Native American history of Minnesota Pre-statehood history of Minnesota Paleo-Indian archaeological sites in the United States {{MilleLacsCountyMN-geo-stub

See also

References