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Lithics Home | Counties A-Z | Geologic Systems | Lithic Types | Chert Drawers | Lithics Program All known lithic sources located on individual county maps have been digitized so this information can be coupled with the Excel lithic inventory for a GIS format. With the creation of a GIS for the Lithic Raw Material Assemblage, data can be use with a variety of base maps including state department of transportation maps, 1:100,000 scale and 1:24,000 scale topographic maps. This has yielded a better picture of where our known lithic sources are. The Landform Regions of Iowa map will also be integrated into the GIS format for additional analytic potential. The current assemblage is the result of opportunistic sampling, leaving areas of the state possibly under represented or not represented at all. Additional samples are constantly being acquired and incorporated into the assemblage. Each county folder contains three types of maps. The transportation
map has “DOT” following the county abbreviation (i.e. AD-DOT
= Adair County transportation map). The lithic source catalogue number
followed by 100 or 24 identifies the 1:100,000 and 1:24,000 maps, respectively
(i.e. AD-A-100 = Adair County sample A at 1:100,000 scale; AD-A-24 =
Adair County sample A at 1:24,000). Designed by Tricia R. Bender
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