Minnesota Geological Survey
Miscellaneous Map Series
M-178

SURFICIAL GEOLOGY OF THE TWIN CITIES
METROPOLITAN AREA, MINNESOTA
Compiled By
Gary N. Meyer

2007

This data and map area correspond to the area of the Twin Cities
Bedrock geology map published previously as M-104 in 2000.

GIS shapefiles are in the zipped folder m178.zip

All files use UTM NAD83 Zone 15N projection data

Shapefile listing:

7co_metropg  -- polygon file of the seven county metropolitan area
eol_snd_loess  --  polygon file showing locations of eolian sands and loess
gmln  --  line file showing locations and types of surficial geomorphic features
gmln.lyr  --  ArcGIS 9.2 layer file to code gmln lines
moland_overlay  --  polygon file showing where Moland  phase outwash underlies unit
Qe_highrelief  --  polygons showing where dune relief exceeds 30 feet
sgpg  --  polygon file of surficial geology units
sgpg.lyr  -- ArcGIS 9.2 layer file to color sgpg units
terrace_bdrk  --  polygons showing where terraces are within 10 feet of the bedrock 
surface

m178.pdf  --  pdf image of map plate with explanation of units and symbols.