Geologist Steve Paulson will present about the origins of Minnesota 10 a.m. to noon Wednesday, March 6, at Kroening Interpretive Center, 5114 North Mississippi Drive in North Mississippi Regional Park, Minneapolis. Paulson will discuss why Minneosta has 10,000 lakes, more agates on the beaches and rocks from volcanoes. Paulson’s presentation brings life to the complexities of geology and provides an enjoyable adventure into the world of rocks. Refreshments will be served. The cost is $5 and reservations are required. Call 763-559-6700 to sign up with activity No. 216917-04. This program is for ages 16 and older.