This reader allows FME to access Spatial Data Transfer Standard (SDTS) formatted file sets.
Overview
While the SDTS reader should be able to import at least some data from any SDTS data source, it has been tested with USGS DLG dataset which adheres to the SDTS Topological Vector Profile (TVP) and USGS Digital Elevation Model (DEM) datasets that adhere to the SDTS Raster Profile.
More information on the SDTS Format can be found at:
http://mcmcweb.er.usgs.gov/sdts/
Some aspects of an SDTS transfer, such as data quality information, is not accessible via the SDTS reader, but can be extracted using the ISO 8211 reader by a user well versed in the SDTS format.