I received the info on this website from some Lookout Tower friends. This
website has lots of old maps of states, counties and towns, it proved very
useful in searching my state for locations of older lookouts.

This exact link is for Arkansas but if you put your state in the search box
you'll get a long list of maps there. Good luck and happy searching.

http://www.historicmapworks.com/Search/engine.php?keywords=Arkansas&x=40&y=2

-- 
Smoke Pfeiffer
Don't believe anything until
you hear the official denial!