Spatial Digital Database of Selected Data from the Geologic Map of the Western Part of the Cut Bank 1° x 2° Quadrangle, Northwestern Montana

Online link https://geo-nsdi.er.usgs.gov/metadata/map-i/2593/metadata.faq.html
Description The paper geologic map of the western part of the Cut Bank 1° x 2° quadrangle, northwestern Montana (Harrison and others, 1998) was digitized and initially attributed by the Montana Bureau of Mines and Geology (MBMG) and remitted to the U.S. Geological
Originators Harrison, Jack E.; Whipple, James W.; Lidke, David J.; Kayser, Helen K.; and Miller, Robert J.

Related topics

States or counties

Overview of attributes

The geo_net coverage includes polygons that are map units and
open water, and arcs that are contacts, color boundaries, and
shoreline.
The geo_net.pat INFO file consists of the following items:
GEOCODE--Refers to the type of polygon and is one of the following:
the map unit abbreviation, "lake", "island", or "river".
AGE--Refers to the age of the map unit and is one of the following:
"Holocene", "Holocene and Late Wisconsin", "Late Wisconsin", "Early
Wisconsin", or "Pre Wisconsin".
MORAINES--A modifier to the map unit indicating if the unit is a
moraine and is one of the following:  "Ground moraine", "Ground
moraine under Lake Michigan", "Ground moraine under Lakes Michigan and
Huron", "Ground moraine under Lake Superior", "End moraine", or
"Attenuated drift".
MAP_UNITS--A description of the soils within the map units (see below).
MODIFIER--Indicates the names of rivers, lakes, or islands or
indicates if a map unit is submerged.
COLOR--indicates the number of the shade unit in shadeset color524.shd
used to fill the map units when plotted using the AML script superior.aml.
Items in geo_net.pat are defined as follows:
>GEOCODE        MAP_UNITS, (AGE)
>lm       LAKE CLAY AND SILT UNDER LAKES MICHIGAN, HURON, AND
>           SUPERIOR (HOLOCENE)
>lc       LAKE SILT AND CLAY UNDER LAKES MICHIGAN, HURON, AND
>           SUPERIOR (HOLOCENE)
>ls       LAKE SAND AND GRAVEL UNDER LAKE SUPERIOR (HOLOCENE)
>al       ALLUVIUM (HOLOCENE AND LATE WISCONSIN)
>hp       PEAT AND MUCK (HOLOCENE AND LATE WISCONSIN)
>ed       DUNE SAND (HOLOCENE AND LATE WISCONSIN)
>lds      DELTA SAND (HOLOCENE AND LATE WISCONSIN)
>lga      LAKE GRAVEL (HOLOCENE AND LATE WISCONSIN)
>lca      LAKE SILT AND CLAY (LATE WISCONSIN)
>lsa      LAKE SAND (LATE WISCONSIN)
>gg       OUTWASH SAND AND GRAVEL (LATE WISCONSIN)
>kg       ICE-CONTACT SAND AND GRAVEL (LATE WISCONSIN)
>tc       CLAYEY TILL, Ground moraine (LATE WISCONSIN)
>tc       CLAYEY TILL, Ground moraine under Lake Michigan
>           (LATE WISCONSIN)
>tc       CLAYEY TILL, End moraine (LATE WISCONSIN)
>tcr      CLAYEY TILL, Attenuated drift (LATE WISCONSIN)
>tl       LOAMY TILL, Ground moraine (LATE WISCONSIN)
>tl       LOAMY TILL, Ground moraine under Lake Michigan
>           (LATE WISCONSIN)
>tl       LOAMY TILL, End moraine (LATE WISCONSIN)
>tlr      LOAMY TILL, Attenuated drift (LATE WISCONSIN)
>td       CALCAREOUS SANDY LOAMY TILL, Ground moraine
>           (LATE WISCONSIN)
>td       CALCAREOUS SANDY LOAMY TILL, Ground moraine under
>           Lakes Michigan and Huron (LATE WISCONSIN)
>td       CALCAREOUS SANDY LOAMY TILL, End moraine (LATE WISCONSIN)
>tdr      CALCAREOUS SANDY LOAMY TILL, Attenuated drift
>           (LATE WISCONSIN)
>tdb      NONCALCAREOUS SANDY LOAMY TILL, Ground moraine (LATE
>           WISCONSIN)
>tdb      NONCALCAREOUS SANDY LOAMY TILL, Ground moraine under Lake
>           Superior (LATE WISCONSIN)
>tdb      NONCALCAREOUS SANDY LOAMY TILL, End moraine (LATE WISCONSIN)
>tdr      NONCALCAREOUS SANDY LOAMY TILL, Attenuated drift (LATE
>           WISCONSIN)
>ts       SANDY TILL, Ground moraine (LATE WISCONSIN)
>tsr      SANDY TILL, Attenuated drift (LATE WISCONSIN)
>tde      SANDY LOAMY TILL (EARLY WISCONSIN)
>tlp      LOAMY TILL (PRE WISCONSIN)
>tlq      LOAMY TILL (PRE WISCONSIN)
The geo_net.aat INFO file consists of the following items:
LTYPE--Refers to the type of arc and is one of the following:
"contact", "shoreline", "map boundary", or "null".  Null is the
imaginary line separating streams from lakes.
ACCURACY--Refers to accuracy of location of arcs in the geo_net
coverage and is either "certain" or "inferred".
The gla_lin coverage contains lines that represent linear glacial
features.  The gla_lin.aat INFO file consists of the following items:
TYPE--Refers to the type of glacial feature described by the arc
and is one of the following:  "esker", "map boundary", or "limit of
glacial advance".
MODIFIER--Refers only to limits of glacial advance that are
"interlobate".
ACCURACY--Refers to accuracy of location of arcs in the gla_lin
coverage and is either "certain" or "inferred".
The gla_pnt coverage contains points that represent drumlins,
places where the direction of ice movement is indicated by
striations, or the location of important stratigraphic sections.
The gla_pnt.pat INFO file consists of the following items:
TYPE--Refers to the type of feature shown at the point and is
one of the following:  "drumlin", "direction of ice movement",
or the name of important stratigraphic sections.
ANGLE--Refers to the direction of drumlin or ice movement; in
degrees measured clockwise from north.
MRKANGLE--Negative of ANGLE; useful for plotting symbols in ARCPLOT.
Hydr_lin is a line coverage created after scanning the hydrographic
layer that was used in the original paper map.  It has no user-defined
attributes.
Topo_lin is a line coverage created after scanning the topographic
layer that was used in the original paper map.  It has no user-defined
attributes.
Bnd_lin is a line coverage created from 1:2,000,000-scale U.S.
Geological Survey Digital Line Graph coverages (DLG).  It contains
lines representing the U.S./Canada international boundary and state
boundaries.  The bnd_lin.aat INFO file contains the following item:
TYPE--Refers to the type of line and contains the values: "state
boundary", "international boundary", or "map boundary".
Bnd_net is a polygon coverage created from 1:2,000,000-scale DLG
coverages and contains political and administrative boundaries.
To decrease the size of the coverage, all user-defined attributes have
been removed except "STATE_NAME" and "AREA_NAME".
Rd_lin is a line coverage created from 1:2,000,000-scale DLG coverages.
The coverage contains lines representing roads in the map area.
All DLG attributes have been stripped from the lines except
ENTITY_LABEL, ROUTE_NUMBER1, ROUTE_NUMBER2, and ROUTE_NUMBER3 which
contain the federal and state highway number designations.
Rr_lin is a line coverage created from 1:2,000,000-scale DLG coverages.
The coverage contains lines representing railroads in the map area.
It has no DLG attributes.
Grid_lin is a line coverage created to display projection lines in
one degree increments.  It has no attributes.

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