This is a fun little tidbit I found about the Naperville site:
"The Indian Hill Lab at Naperville is built on the site of an ancient Potawatomi signaling hill. On the prominence where Indians once sent up smoke signals, Bell Labs' scientists are building electronic equipment which has and will revolutionize telephone service. It is doubtful that Indian Hill developments will produce anything of such generalized use as the transistor."
"The Indian Hill Lab at Naperville is built on the site of an ancient Potawatomi signaling hill. On the prominence where Indians once sent up smoke signals, Bell Labs' scientists are building electronic equipment which has and will revolutionize telephone service. It is doubtful that Indian Hill developments will produce anything of such generalized use as the transistor."