September is when corn mazes and pumpkin patches open, and pears and apples ripen at pick your own farms. Check http://www.pickyourown.org/OR.htm for a special listing of pumpkin patches and corn mazes. Check http://www.tricountyfarm.org for even more local farms.
“Ringling Bros. and Barnum and Bailey Circus”, Thursday, September 15- Sunday, September 18, Rose Garden, Pdx. http://www.ringling.com/ and http://rosequarter.com/EventDetail/tabid/146/rqeventid/747/Default.aspx
“Mt. Angel Octoberfest”, Thursday, September 15- Saturday September 17, 11AM-12AM, and Sunday, September 18, 11AM- 9PM. Free admission to some events, cover charge for the Biergarten, Alpinegarten and Weingarten . These rates are different each day/evening; see website for details. Ages 20 and under admitted free with a paid adult. “There is no more appropriate setting for an American version of the "Old World" Oktoberfest than in Mount Angel, Oregon. The small community was settled by German pioneers in the 1800s and readily reminds one of the rich Bavarian countryside. Oregon's oldest and best-loved Oktoberfest began in 1966 as a traditional harvest festival to celebrate the bounty of the earth and the goodness of creation. It is Oregon's largest folk festival.” http://www.oktoberfest.org/