Map of the United States showing routes of principal explorers, from 1501 to 1844.
Bond, Frank.
cartographic
Maps. lcgft https://id.loc.gov/authorities/genreForms/gf2011026387
[S.l.],
1907.
eng
"Taken from Bulletin 817, plate 4."
United States--Discovery and Exploration--Maps.
United States.
Available also through the Library of Congress web site as a raster image.
http://hdl.loc.gov/loc.gmd/g3701s.np000053