To echo what Mark said, try:
http://historicalmaps.arcgis.com/usgs/
These are USGS maps, not the particular BLR maps that the student found in the NARA, but if he's just looking for topo info, USGS should suffice, right?
On Jan 29, 2015, at 7:33 AM, Tony Diaz <[log in to unmask]> wrote:
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