Select a USGS quadrangle name from the list or click on the map to zoom to a quadrangle.

Select Quadrangle

Next, click inside a dashed outline to view a list of available files to download.
   
   
   
   
 
   
   
   
Full extent
NW
N
NE
W
The Map
E
SW
S
SE

Copyright 2005, Indiana University
University Information Technology Services
Last updated: December 2, 2005
27641164 27601160 27641160 27601156 27641156 27561164 27601164 27601176 27641176 27561172 27601172 27641172 27561148 27601148 27641148 27561144 27561168 27601168 27641168 27601152 27641152 27601144 27641144 27521140 27561140 27601140 27641140 27441136 27481136 27521136 27561136 27601136 27641136 27401132 27441132 27481132 27521132 27561132 27601132 27641132