An antebellum Christmas Open House will be celebrated from 1 to 4 p.m. Dec. 9 at the 1840 manor house, Mount Aventine, at Chapman State Park at 3452 Ferry Place in Indian Head.

Hear the handbell choir of Waldorf’s Good Samaritan Presbyterian Church at 1:30. Enjoy the decorations and Civil War dolls by Faye Snyder under the Christmas tree. Tour the manor home and new visitor's center. Take the winter nature walk at 2:30 led by Mike Callahan. The event is free, but donations are suggested.

Call 301-753-6754 or go to www.friendsofchapmansp.org.

Mount Aventine and the visitors center also will be open 10 a.m. to 2 p.m. Dec. 11 to view the decorations and enjoy the park.