Build a snowman out of biodegradable and natural items to win. Fill out an entry form at the main office.

With small solar lights to guide their way, hikers, skiers and snowshoers can traverse the 1.3-mile fitness trail at Old School Forest Preserve in Libertyville or the 1.65-mile hilly section of the Millennium Trail adjacent to the winter Sports Area at Lakewood Forest Preserve in Wauconda. Starting Sunday, Nov. 4, the trails and adjacent parking lots will remain open until 9 .m. daily until March 9.

Feature the black bear and its adaptations for survival in the forest. Crawl into the bear's den, compare your senses to that of the black bear, feel his fur, come face to face with a black bear mount and more.

General admission will be free from Jan. 7-11, 14-18, 21-25, 28-31.

Exhibit includes numerous artifacts, photographs and other documentary items that tell the story of Chicago's iconic candy makers, including Snickers, Lemonheads, Butterfingers and Cracker Jack.