Calling all 4th through 8th graders!  Come to the Olson Library on Saturday March 14th from 9:30 a.m. to 12:00 noon for a workshop on creating your entry in the poster contest.  We will present information on many Northwoods’ invasive species plus give you the supplies and art paper you’ll need to create a winning poster.  Posters will be displayed in the library until April 29th.