Minnesota Geological Survey
Miscellaneous Map Series M-177

Quaternary Geology of the Fosston 30'X60' Quadrangle,
Northwestern Minnesota
by Kenneth L.Harris
June 2007

scale 1:100,000

GIS data.

All digitizing was done on-screen using ArcView with USGS 7.5"
drgs as background material. Some linework was derived from
the SSURGO soils atlas data from Clearwater, Polk, Red Lake,
and Pennington counties. Shapefiles were converted to
ArcInfo coverages, cleaned, built and given attributes in
ArcGIS9.2 workstation.

projection: UTM zone 15; datum: NAD83

base layers
-----------
basebw.tif - black and white, modified version of USGS 100k drg
             (Fosston Quadrangle)
basebw.tfw - world (registration) file for basebw.tif


Surficial geology map
---------------------
sgnt   - net (polygon and line) coverage of surficial geology
sgln   - line coverage of geomorphic features

lkpg   - polygon coverage of lakes
xsec   - trace of cross-section "A-A'"
papg   - project area (Fosston 100k sheet) polygon
quads  - coverage of 7.5" quad polys in study area

feature (attribute) codes
-------------------------
coverage sgnt - polygons
 attributes "maplabel" and "descriptn"
  MAPLABEL DESCRIPTN
  Qcc      Quat.collapsed ow;grvl
  Qcc      Quat.collapsed ow;sandy
  Qhp      thick peat
  Qlc      LRedLkFalls;collpsd ow
  Qlc      LRedLkFalls;collpsd ow;over sand
  Qlh      high rel.till;LRedLkFalls
  Qlm      LRedLkFalls;med.rel.till
  Qlo      LRedLkFalls;ow grvl
  Qlo      LRedLkFalls;ow sand
  Qlp      palimp.chnls through LRedLkFal
  Qlw      wave eroded till;LRedLkFalls
  Qm       MarcouxFm;med.rel.till
  Qmp      palim.chnls through Marcoux
  Qmr      MarcouxFm;wat.erod.till
  Qnc      sand,silt,clay
  Qnc      sand,silt,clay
  Qot      LRedLkFalls;unc.ow.ovr.till
  Qot      LRedLkFalls;unc.ow.ovr.sg
  Qpc      QuatChnl.Sed;s+g
  Qpc      QuatChnl.Sed;s+g.ovr.till
  Qpn      sand,silt,clay
  Qpn      sand,silt,clay over till
  Qps      sand+silt; grvl ridges
  Qpt      thin peat over till
  Qpt      thin peat over sand
  Qs       steep slope proc.
  Qsc      sand+silt; grvl ridges
  Qt       till, undiv.
  Qup      palimp.chnls thru URedLkFalls
  Quw      wave eroded till-URedLkFalls
  Qw       alluvium
  w        water body

coverage sgln - lines
 attributes "mgscode" and "descriptn"
  MGSCODE SYMBOL DESCRIPTN
  449000  101    miscellaneous line
  449001  101    geologic contact
  449006  116    fluvial chan.bnk-sharp
  449007  118    fluv.chan.bnk-sharp.approx
  449009  188    beach ridge
  449011  190    esker
  449017    8    flow direction
  449036  256    ice margin
  449102  135    palimpsest channel
  449116  257    palimpsest channel.approx
  449117  112    collapsed channel boundary

*****************************************************************
Questions concerning the digital data may be directed
to Tim Wahl ( tewahl@umn.edu ) or Rich Lively ( lively@umn.edu ).
Questions concerning the geologic information presented in
the map should be directed to the author, Ken Harris
(harri015@umn.edu).  All may be reached by phone at the MGS at
612-627-4780.

Tim Wahl 2006/05/22.