Missoula Farmer's Market, Saturday, 9 a.m.-noon, Circle Square.
Missoula Arts & Crafts Market, Saturday, 9 a.m.-1 p.m., East Pine Street.
"Southern Counterpart to Lewis and Clark: The Freeman and Custis Expedition of 1806," second of three-part Montana Story Lecture Series, Saturday, 2 p.m., Historical Museum at Fort Missoula, Building 322. Free and open to the public. Info: 728-3476.
Volumen perform, Saturday, 9 p.m., Missoula Crystal Theater. Tickets: $6.
"Inter Play," an interactive concert for recorders featuring Nancy Seldin and Jo Ella Hug, assisted by Sonia Chessin and Kathryn Skinner, 15th to 20th century recorder music with audience involvement, Saturday, 7:30 p.m., Open Way Center, 702 Brooks. Suggested donation: $20 or as possible.
Rocky Mountainaires male barbershop chorus annual variety show, Saturday, 2 p.m. and 7:30 p.m., Elks Lodge, 112 Pattee St. Guest performers include Five Valley Sweet Adelines, accordionists Tom Collins, Mike Hanson and Dick Skultin; Shenanigans, and Hellgate High School Chevaliers. Matinee: 2 p.m., tickets $8 and $5. Evening social hour, 5:45 p.m.; buffet dinner, 6:30 p.m. Tickets: $20. Proceeds benefit Missoula schools music programs and scholarships. Info: 251-4740, 721-4499.
Five Valleys Audubon Society, view migrating waterfowl and shorebirds, Sunday, Smurfit-Stone Container. Meet 8 a.m., Adams Center parking lot or meet at Smurfit-Stoneís main gate at 8:30 a.m. Call Larry Weeks, 549-5632.
Check out the full Arts and Entertainment calendar here.