Doonesbury by Garry Trudeau for November 09, 1973
Phred: Monuments! I'm mostly interested in monuments! Man: Yeah, well don't get your hopes up. We'll be lucky if we find any... it's pretty wild country, so I hope you'r en ot inclined to givin' in to fatigue... oh, yeah - I'm sure I don't have to remind an ol' trooper like you... but watch out for bomb craters.