1 NOAA has a [Historical Map & Chart Collection][charts] with free
2 downloads of high resolution scans of all sorts of historical maps and
3 charts. For example, [George Vancouver's 1791 “Chart Shewing part of
4 the Coast of N.W. America”][vancouver].
6 [charts]: http://historicalcharts.noaa.gov/
7 [vancouver]: http://historicalcharts.noaa.gov/historicals/preview/image/VAN520