The files at this level are:

  pub/data/DLG/LARGE_SCALE/H/hannibal_se_MO/Hydrography/version_1
        D3909130_hy0s.1.sdts.tar.gz
This file will be used to show the simplest case for DLG-3 which is one
   tile per SDTS Transfer.  Stored as file OneTile.


  pub/data/DLG/100K/L/lake_of_the_ozarks-e_MO/hydrography
        JE4.hydro.sdts.tar.gz
This file will be used to show the case of multiple tiles per one SDTS
   Transfer. Stored as file FourTile.


  pub/data/DLG/100K/L/lake_of_the_ozarks-e_MO/transportation
        JE4.trans.sdts.tar.gz
This file will be used to show the most complicated case of multiple 
   tiles and multiple layers in one SDTS transfer. Stored as file Layers.


  pub/data/DLG/2M/MO
        MO.hydro.sdts.tar.gz
This file will be used to show an irregular shaped spatial domain. Stored
   as file State.

Additional datasets for each scale are stored in the other directories.