An aerial view of the interchange between Interstate 580 and Interstate 680 in Dublin. The "cloverleaf" has in its upper two quadrants large factory/warehouse complexes. In the lower two, there is some farm land. The Tribune clipping, dated August 31, 1976, attached to the back of the photo reads: "Here is the kind of thing that would baffle a laboratory rat, but a highway engineer could probably walk through the whole thing blindfolded and humming happily. This is a view of the interchange for Highways 580 and 680 near Dublin, taken from the air by The Tribune's Russ Reed at the left, ahhh,, no, at the right, no, now wait a minute.'