New Reports Available

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The Office of the State Archaeologist (OSA) recently posted several reports for surveys funded by the Arts and Cultural Heritage Fund of the Minnesota Clean Water, Land and Legacy Amendment on its website.  The recent posts include county surveys for Le Sueur and Lac qui Parle Counties, a report on radiocarbon dating in Minnesota and an overview of the Archaic in Minnesota.

LeSueur survey New Reports AvailableThe Le Sueur County archeological survey, undertaken by the Department of Anthropology at Minnesota State University Mankato, was completed in 2014.  The project involved an extensive background literature review, a re-examination of existing collections both public and private and survey of more than 2000 acres of land.  Fifty previously undocumented sites were found.  The report can be found at this link:   https://mn.gov/admin/assets/LeSueur%20Final%20Report%20V1-public-2%20web_tcm36-334427.pdf

A radiocarbon study was completed by PaleoResearch Institute in 2017.  The report was to summarize what was known about absolute dating in C14 study New Reports AvailableMinnesota, to look at the reliability of the know dates and obtain additional dates from poorly dated contexts.  Reference samples from fish collected in 1939 and 2015 along with wild rice harvested in 2015 were also dated.  A review of the Minnesota state radiocarbon record yielded patterns worthy of note. In particular dates on charred food crusts from ceramics often appear too old, so until reliable a methodology for processing samples is developed it is recommended that food crusts not be dated. Dates on mammal bones from Minnesota also provide a too-ancient chronology. Often comparison with dates on short-lived terrestrial plant remains is impossible, as they are not present in the archaeological record. Charcoal appears to provide the most accurate chronology for Minnesota. Radiocarbon dates on animal bones in Minnesota are often the oldest obtained for individual sites, cultural complexes, or within geographic areas. At present, the reason for this discrepancy has not been researched and remains unexplained. It is recommend not dating additional archaeological bone until original radiocarbon research can be conducted on recent specimens to verify that land animals, as well as fish and ducks (and other birds living on the water or harvesting prey from the water) yield discrepant dates.  To learn more follow this link:  https://mn.gov/admin/assets/Dating%20Minnesotas%20Prehistory%20PRI%20FRE%20Study%202017%20final-web_tcm36-334425.pdf

Lac qui parle survey New Reports AvailableThe Lac qui Parle County survey was completed in 2017.  The project was conducted by the Archeology Laboratory at Augustana University.  The survey investigated 4,500 acres of land and documented 46 previously unrecorded sites.  In addition limited excavations were undertaken at site 21LP0011, located on Big Stone National Wildlife refuge.  Previous work at the site had recovered a fluted point base and multiple overshot flakes suggestive of an early Paleoindian presence at the site.  The units produced 251 lithic artifacts; the majority consisting of debitage.  The report is found at this link:  https://mn.gov/admin/assets/Lac%20Qui%20Parle%20Public%20Report%20Final%20web_tcm36-334426.pdf

‘Minnesota’s Archaic Tradition: An Archeological and Paleoenvironmental Overview and Assessment’ presents the results of a review of archaeological and Archaic study New Reports Availableenvironmental literature, the organization of a symposium focusing on local and regional Archaic topics, an evaluation of the utility of Minnesota’s current division of Archaic tradition historic contexts and a synthesis of the investigation results.  Recommendations are made for future study.  The report summarizes what we currently know about the Archaic in Minnesota and takes a critical look at how we interpret that period.  For the avocational archaeologists there are well illustrated overviews of the artifacts and excavations at most of the major Archaic site excavations in the state.  Follow this link to read more:  https://mn.gov/admin/assets/MN%20Archaic%20Final-web_tcm36-334428.pdf

The Swift County archaeological survey which had been previously posted on the OSA site and inadvertently removed was also reposted for those who have not yet had the chance to review the report.  The Swift County report can be found here:  https://mn.gov/admin/assets/SWIFT%20CO%20SURVEYREPORT%201_31_11-public_tcm36-334429.pdf


Minnesota Archeologist, Volume 74

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Volume 74 web Minnesota Archeologist, Volume 74

The latest issue of the Minnesota Archeologist (Volume 74) has been published. Articles include the third installment of the history of Minnesota archaeology by Guy Gibbon and Scott Anfinson focusing on the period of the 1970s to 2015 looking at cultural resource management archaeology. David Maki, Sigrid Arnott and Michael Bergervoet examine the relationship between burial mound locations and the geophysical evidence for lightning strikes. Jack Steinbring presents some optically stimulated luminescence dates from the Hensler Petroglyph site in east-central Wisconsin suggesting that some of the glyphs date to before 10,000 BP. A multi-component Woodland site in southeastern Minnesota excavated in 1997 by the MnDNR Division of Trails and Waterways, 21HU0167, is reported on by Timothy Tumberg. Dan Wendt and Mark Doperalski assess the limits of raw material analysis and identification by archaeologists in Minnesota, discussing how they are doing and means of improvement. Kent Bakken documents a biface cache from Todd County, Minnesota consisting of 12 minimally worked bifaces made of non-local materials, specifically Mayes Creek Chert and Burlington Chert. Plant microfossils (starch granules and phytoliths) were examined by Alexandra Burchill and Mathew Boyd to provide a better understanding of the plant foods utilized by the Initial Woodland inhabitants of northern Minnesota. Mathew Mattson discusses using traditionally available tools and methods to work raw copper obtained from glacial drift to produce copper tools consistent with archaeologically recovered specimens. David Mather continues his series on Minnesota archaeological sites recently listed on the National Register of Historic Places including two American Indian earthwork sites, an historic stagecoach road and associated archaeological sites, and a multicomponent habitation/mound site in a national forest. The issue concludes with an article in memory of Herb Wright and his contributions to archaeology authored by Scott Anfinson.

Follow this link to see the table of contents http://mnfieldnotes.com/wp-content/uploads/2017/05/Volume-74.pdf . If you would like to order a copy contact the Minnesota Archaeological Society. You can email Kent Bakken at bakk0029@umn.edu or Anna Morrow at anmorrow@q.com . They can also be reached by mail at The Minnesota Archaeological Society, Fort Snelling History Center, 200 Tower Avenue, St. Paul, MN 55111.


Minnesota River Valley Survey

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MnR Map Minnesota River Valley Survey

A survey report recently posted by the Office of the State Archaeologist details the results of an archaeological and geomorphological study of the Minnesota River valley, The Minnesota River Trench:  An Archeological and Geomorphological Study of its Prehistory and Settlement by Austin A. Buhta, Rolfe D. Mandel, Michael G. Michlovic, Eric C. Grimm, and L. Adrian Hannus.  The primary goal of the study was to determine where prehistoric archaeological sites are located within the valley and to determine whether there are settlement patterns present among the primary prehistoric cultural traditions that are present in the valley.  The second focus was to evaluate a known, possible, paleoindian site (21LP0011) in the river trench.  Excavation at an intact paleoindian site within the valley could help understand some of Minnesota’s earliest occupants and would also provide information on the timing and character of Glacial River Warren, which formed the Minnesota River valley as Glacial Lake Agassiz’s southernmost outlet.

MNR Cov Minnesota River Valley SurveyThe geomorphological study helped to determine what landforms within the river trench would have been available for habitation at a given period in time and also explained how erosion and channel migration would have modified or destroyed any archaeological sites present.

The archaeological study used information from previously recorded sites along with field survey of 1,446 acres to ascertain site locations within the river valley.  Erosion and sedimentation have resulted in a low probability of surficial sites within the valley.  Recent work has documented that colluvial and alluvial processes have buried sites in the lower Minnesota River valley under meters of sediment.MnR buff Minnesota River Valley Survey

This technical report will likely be of more interest to professional archaeologists rather than avocational archaeologists, however the section regarding the excavations at site 21LP0011 is an interesting read.  At this site the archaeologists try to determine the age of the major component of the site without the advantage of diagnostic artifacts or datable material recovered from their excavations.

Follow this link to download the report (it is a 13 MB file):  http://mn.gov/admin/assets/minnesota-river-report-public-b_tcm36-247477.pdf


Stone Tools of Minnesota

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stone tool Stone Tools of Minnesota

The Office of the State Archaeologist recently posted a digital version of a new stone tool identification guide for Minnesota.  The publication titled “Stone Tools of Minnesota” was authored by Toby A. Morrow with contributions by Scott F. Anfinson, Kent E. Bakken, Guy E. Gibbon, Michael D. Giller, John H. Hahn, Daniel K. Higginbottom, and Craig M. Johnson.  The project was funded by the Arts and Cultural Heritage Fund of the Minnesota Clean Water, Land, and Legacy Amendment as part of the Statewide Survey of Historical and Archaeological Sites.
The book is more than just and identification guide to Minnesota’s stone tools, but a textbook on lithic materials and lithic technology in Minnesota.  For example, the introductory chapter includes sections on; objects stone tool2 Stone Tools of Minnesotacommonly mistaken for stone tools, facts about fakes (modern reproductions), how we have learned about stone tools, and lithic use wear and residue studies (plant residues including starches and phytoliths and animal residues like blood).
Besides the Introduction, chapters include; A Brief Primer in Geology; History of Lithic Analysis in Minnesota (Anfinson); Chipped Stone Tools; Projectile Points; Chipped Stone Raw Materials (Bakken); Ground Stone Tools; and a chapter on Future Directions which suggests the directions future studies to understand and analyze stone tools should take.
The book is heavily illustrated with excellent color photographs showing the artifacts full size and is over 400 pages in length.  It has something for both the avocational and professional archaeologist.  Due to the size of the digital file it was posted as two downloads.   Part 1: http://mn.gov/admin/assets/stone-tools-of-minnesota-part1_tcm36-247478.pdf    (14MB) and Part 2: http://mn.gov/admin/assets/stone-tools-of-minnesota-part2_tcm36-247479.pdf   (17MB).  At this time there are no hard copies of the report available, the Board of the Statewide Survey of Historical and Archaeological Sites is working on getting it published.


The Minnesota Archaeologist

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The latest volume of The Minnesota Archaeologist has been publishedMnArch 2014 The Minnesota Archaeologist, Volume 73, 2014.  This issue covers a range of topics from historic through precontact periods.  There is a transcript of the diary of Alexander Ramsey’s travels in the Mississippi Headwaters, excavation reports from precontact sites in Blue Earth and Cottonwood Counties and two discussions of Prairie du Chien Chert sources.  Also included are a review of recent underwater archaeological surveys across the state and Part 2 of a history of Minnesota archaeology.  Follow this link to see the table of contents.  For information on how to obtain a copy contact the Minnesota Archaeological Society.


OSA Annual Report

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14 OSA Annual Report OSA Annual Report

The Office of the State Archaeologist (OSA) has released its Annual Report, a summary of activities undertaken by the OSA for the 2014 fiscal year.  Anfinson also includes overviews of other archeological activities across the state.