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EASTER EGG HUNT

Grab your favorite basket and celebrate spring with an egg hunt on the lawn. Tour the Hill House, win prizes and enjoy treats. (10 a.m. Sat. $6. James J. Hill House, 240 Summit Av., St. Paul. 651-296-6126. www.mnhs.org.)

EARTH DAY CELEBRATION

The Harriet Alexander Nature Center turns 20 this year and celebrates with a day of environmental education. The day begins with a fundraising pancake breakfast. Activities include live music, exhibits, tree planting and craft activities. (9 a.m. Sat. Free. Harriet Alexander Nature Center, 2520 N. Dale St., Roseville. 651-765-4262. www.cityofroseville.com/hanc.)