----------------------------Original message---------------------------- Although I've been reading this and other image and mapping groups for some time, I've not seen any postings that suggest a solution to a problem I have. I would like to be able to extract county boundary outlines in vector format from the USGS Digital Line Graph (DLG) 1:2,000,000 CD-ROM of the United States on my PC. The CD-ROM comes with a demo program called "mapper," but the USGS folks tell me that I need a "spatial application package" to manipulate the data on the CD-ROM. Thus far I have not seen mention of such a program that would run on a 486 PC. As I am an educator, not a cartographer or programmer, I would like to find a user friendly, relatively inexpensive software program that would allow me to process the DLG data on my PC in a vector file format (for scaling purposes) that could then be converted to a standard PC graphics file format, such as .tif or .pcx. If anyone could e-mail me suggestions or leads, I would greatly appreciate it. Thanks, roy Roy E. Hughes [log in to unmask] 8904 164th Street S.E. (206) 668-0515 Snohomish, WA 98290