Could you provide us with a useable summary of all the answers to your SDTS odyssey? I'm sure others would really appreciate it. - Bill Thoen SDTS (Spatial Data Transfer Standard) is a data file format used by the USGS. First I downloaded the files from http://www.gisdatadepot.com, I found this site to be useful in obtaining data for my particular area of study (Spokane WA). I found the information I needed, but it was zipped in a (.tar.gz) format, I discovered that in order to extract these files properly using WinZip I had to uncheck the TAR File Smart CR/LF conversion box located under OPTIONS>CONFIGURATION (note do not use WinZip Wizard). In addition you must first rename the zip file from xyz_tar to xyz.tar.gz. Upon unzipping the file I found there were a number of files with a .ddf extension. These are the SDTS files. I found an executable file located at ftp://ftp.blm.gov/pub/gis/sdts/ this file called sdts2mif converted the .ddf files to a .mif file. I then imported the .mif file into MapInfo. I then discovered that I also needed a file called the Master Data Dictionary. I found this file at ftp://sdts.er.usgs.gov/pub/sdts/software/masterdd/. All in all I found that using SDTS data is a very time consuming and tedious process. I hope that this information can help someone who like me was unexperienced in using SDTS data. Thanks for all the help I got from members of this list. Hope This Helps Kris Kobylski GIS Analyst Nextlink Communications Inc [EMAIL PROTECTED] ---------------------------------------------------------------------- To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] and put "unsubscribe MAPINFO-L" in the message body, or contact [EMAIL PROTECTED]
