The data contained in these directories were
collected by SCIGN using Ashtech Z-12 receivers
at remotely operated SCIGN stations on 4/17/00 and
4/19/00, in support of a special high resolution
topography data set collection along the Hector
Mine earthquake surface ruptures.

Information on these SCIGN sites (antenna heights,
etc.), station coordinates and photos can be found
via http://www.scign.org

Information about the ALSM project supported by
these special high-rate GPS data is available here:
http://rincon.gps.caltech.edu/