“5 men sight UFO near Dresser”,
9 September 1979 (Telegraph-Herald, Dubuque, Iowa)
A small, disk shaped UFO was sighted near Dresser, Wisconsin, on the morning of 5 September 1979, according to the Telegraph-Herald:
http://news.google.com/newspapers?id=yuhFAAAAIBAJ&sjid=ZvoMAAAAIBAJ&pg=6955,1112834
Dresser is a village in Polk County.
The article also mentions the 27 August 1979 (at around 2:00 a.m.) Warren, Minnesota UFO sighting by Deputy Sheriff Val Johnson.
“Dresser, Wisconsin” (City-Data.com):
http://www.city-data.com/city/Dresser-Wisconsin.html
County map of Wisconsin (wikimedia.org)
(wikimedia.org image)