Reply #13: Been there since the sixties

[Lagomorph]

South of Olympia, Washington is the privately owned Uncle Sam billboard. It features conservative, sometimes inflammatory messages, changed on a regular basis. Chehalis farmer Al Hamilton first started the board during the Johnson era, when the government was trying to make him remove his billboards along interstate 5. He had erected the signs after he lost a legal battle to prevent the building of the freeway across his land. Numerous legal and illegal attempts to remove the Uncle Sam billboard have failed, and it is now in its third location. <11> One message, attacking a nearby liberal arts college, was photographed, made into a postcard and is sold in the College Bookstore.

http://wapedia.mobi/en/Billboard?t=4.