http://pubs.usgs.gov/imap/i2628/lfreadme.txt


Description of digital dataset files posted on this website:

lfreadme.txt - this file

lfmeta.txt - FGDC compliant metadata. Each Geodatabase Feature Class also has its own metadata.

lfdb.zip - Zipped package of files necessary to create an ArcMap Personal Geodatabase project.  Includes:
dbreadme.txt
littlefield100k.style
littlefield100k.zip - Personal Geodatabase
lf_base.zip

I2628_shapefiles.zip - This map was originally published as ARC/Info coverages. The authors have converted the coverages to shapefiles and created a style file to facilitate use of the data in ArcMap and other applications. Includes:
readme_lfshape.txt
shapefiles.zip
littlefield100k.style
lf_base.zip