MINNESOTA GEOLOGICAL SURVEY
COUNTY GEOLOGIC ATLAS PROGRAM
PART A: GEOLOGY
The geology part of the county atlas program provides maps
and descriptions that illustrate water well and other data used to map
the bedrock geology; surficial (or Quaternary, glacial) geology; Quaternary
stratigraphy; bedrock topography (elevation of the bedrock surface), depth-to-bedrock,
(thickness of Quaternary materials); Quaternary subsurface geology; mineral
resources (geologic mineral endowment) within each county. Map scale is
usually 1:100,000 although some maps on a plate could be at another scale.
Atlas products beginning in 1982, were published as printed,
standalone paper plates. Recently the MGS has scanned the original plates
and is making older atlases, that may no longer be available in printed
form, available online as PDF images. Atlases prior to C-7 (Ramsey) were
not made in a digital GIS format; from C-7 to the present, GIS files are
available in a digital format. Parts from some of the early atlases have
been digitized from the paper maps and may be available in the folders.
The data are provided as a convenience for potential users in an 'as is'
condition and without documentation. If only PDF documents are in the
folder, that is all that is available. Scott County has been remapped,
PDFs from the original mapping in 1982 are available in C-1 and the new
2007 mapping (PDFs and digital files) is in C-17 (Data include hydrogeology
as well; there will not be a new part B).
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