Retrieving and Unpackin g SDTS DataTutorial and Users Manual June 23, 1998Neither the U.S. Government nor any agency thereof nor any of their employees make any warranty, expressed or implied, or e any assumlegal responsibility for the accuracy, compleenest s, or usefulness of any information, apparatus, product, or process disclosed herein orrepresent that its use would not infringe privately owned rights. Reference to any specific commercial product, processv,ic ore by se trr adename, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or ng by favo theriU.S. Government or any agency thereof.1. Introduction ..............................................................12. Overview of DLG/SDTS and DEM/SDTS Data...................................22 .1 S D TS Ove r vie w...................................................22.2 Mass Conversion of USGS Data to SDT...............................S 22.3 Sales and Distribution Policie........................................s 32.4 SDTS data organization.............................................32 .4 .1 D L G/S D TS D a ta...........................................32 .4 .2 E M /S D TS D a ta ..........................................43. Summary of Data Retrieval Procedures43 .1 D L G/S D TS D a ta43 .2 D E M /S D TS D a ta54 . D e ta ile d In s tr u c tio n s fo r R e tr ie vin g S D TS D a ta ................................. ...