Bob - thanks for the email tutorial.
Here are some resources I use:
http://www.lib.utexas.edu/maps/
http://www.us-geographic.com/
http://historical.mytopo.com/index.cfm?CFID=27749499&CFTOKEN=13804132
http://www.historicmapworks.com/
http://historicaerials.com/
http://www.digitalhistory.uh.edu/maps/maps.cfm
http://nationalatlas.gov/printable/fedlands.html#list
Thanks again for establishing the forum you have done the entire community a great service. I'm sure most will find it a primary source for research material.
Here are some resources I use:
http://www.lib.utexas.edu/maps/
http://www.us-geographic.com/
http://historical.mytopo.com/index.cfm?CFID=27749499&CFTOKEN=13804132
http://www.historicmapworks.com/
http://historicaerials.com/
http://www.digitalhistory.uh.edu/maps/maps.cfm
http://nationalatlas.gov/printable/fedlands.html#list
Thanks again for establishing the forum you have done the entire community a great service. I'm sure most will find it a primary source for research material.