Minnesota Geological Survey
Miscellaneous Map Series M-114 
Bedrock Geologic Map of the Eagles Nest Quadrangle, St. Louis County, Minnesota
Compiled by Mark Jirsa, Terrance J. Boerboom,(MGS) and Dean Peterson (NRRI)
2001


All digital files were created in UTM zone 15 projection and use the North American 1983 datum
New gravity data and processed aeromagnetic grids used to support mapping are available by 
contacting Mark Jirsa or Val Chandler at the Minnesota Geological Survey.

The files are available as:

Final Report in folder m114frpt.

metadata  --  metadata about shape files.

m-114.pdf image of the paper plot.  Readable with Acrobat Reader 3.0 or higher.
m-114.ps postscript image of the paper plot, CD only.

On-demand paper plot, or compact disk available from MGS map sales at 612-627-4780 ex 238 or fax at 
612-627-4778.  Price available on request.

ArcView 3.2 shape files stored in folder M-114 on the CD or as a compressed Zip file both on the CD and 
the MGS FTP site at ftp://mgssun6.mngs.umn.edu/pub2/m-114/.  The zipped 
file can be unloaded to other locations however and will retain the original read/write permissions.

The ArcView shape and project files and their explanation (shape files include dbf tables) are listed below:

Data outside the area of the Eagles Nest Quadrangle are also included in the shape files.

m114.apr – the ArcView 3.2 project file which can be used to view the shape files used to create the M-114 
map.

labels.shp – unit and structure symbol labels

gemdhl – drill hole locations and associated information

gemstr – structure measurement locations and associated information.  Additional information can be 
obtained from the accomapanying report.  In order for structure symbols in this shape file to display 
correctly, the accompanying font file  Mgs_esri.ttf  must be copied into the Fonts folder on which 
ever drive\directory the system fonts reside.  If the gemstr.avl legend file needs to be reloaded, select 
the sym_code field, then click the Advanced button, select the Avangle field for rotation and set the 
scale to 24,000.

gemglk.shp – geologic line symbols such as faults, fold axis, etc.

gemgeol – geologic contact lines, dashed where inferred through lakes

gemgeol.avl – color legend file which can be used to recolor the line symbols

qdpg348d.shp – outline of Eagles Nest quadrangle

lakesprj.shp – outline of lakes digitized from the USGS Eagles Nest quadrangle lake separate.

gemsam – sample locations and associated information

gemoc – outcrop locations and associated information

gemgeou – geologic units of the Eagles Nest quadrangle as prepared for this map

gemgeou.avl – color legend file which can be used to recolor the geology polygons

Drg348d.tif – USGS drg topographic map

Mgs_esri.ttf – font necessary for display of structure symbols.  Copy into Fonts system  folder.

readme.doc and .txt  --  explanation of geology codes used on the map.