USGS Catalog http://geoport.usgs.esipfed.org/thredds/usgs_all.html


Dataset Size Last Modified
     Folder  vault0/   --
     Folder  data0/   --
     Folder  data1/   --
     Folder  data2/   --
     Folder  clay/   --
     Folder  sand/   --
     Folder  silt/   --
     Folder  vortexfs1/   --

THREDDS at USGS WHCMSC see Info
Documentation