39th Street will be closed between Paxson and Russell Streets beginning at 6 a.m. Traffic will be routed to Paxson to Brooks to Fairview to Russell.
Rocky Mountain Elk Foundation, reception for new president and chief executive officer Peter J. Dart, 2 p.m., 2291 W. Broadway.
Multi-media Discussion, "The Vision and Challenge of the Earth Charter," featuring a tapestry created by Missoula artists, 5-6 p.m., Missoula Public Library, large meeting room, 301 E. Main st. Free.
"Medicinal Plants of the Rocky Mountains" with herbalist Elaine Sheff of Meadowsweet Herbs showing a slide presentation on the herbs of the Rocky Mountains. Sheff will talk about how to grow them, what parts of the plant to use and their medicinal uses, 7:30-9:30 p.m., Open Way Center, 702 Brooks St., Missoula. Info: 543-1168.
Cid Wolstein playing original folk music, 7 p.m., Quarter Moon Books, 1221 Helen Ave. Info: 728-3016.
Check out the full Arts and Entertainment calendar here.