Hello, one of my students is trying to find topographic data for parts of eastern Washington prior to the construction of US Bureau of Reclamation reservoirs.  



He found this link:



http://research.archives.gov/description/2210454



Is it possible that these maps exist in digital form somewhere?









Tony Diaz

California Institute of Technology

1200 E. California Blvd.

#100-23

Pasadena, CA 91125