“Calvertpalooza,” a presentation by the chief archaeologist on recent excavations at the Calvert House site. 7 p.m., Historic St. Mary’s City, 18751 Hogaboom Lane. 240-895-4990. Free.
K-3 reading program “Kids Just Want to Have Fun.” 2-3 p.m., Calvert Library Prince Frederick branch, 850 Costley Way. 410-535-0291 or 301-855-1862.
Small Business Administration workshop, on starting a business. 9:30-11:30 a.m., Lexington Park Library, 21677 FDR Blvd. 301-863-8188 or www.stmalib.org. Free.
Family movie, a G-rated film about garden gnomes. Snacks provided. 2:30 p.m., Leonardtown Library, 23250 Hollywood Rd. 301-475-2846 or www.stmalib.org. Free.
Open studio, paint, draw, photograph, sculpt, knit or quilt. Take materials and lunch. 11 a.m.-3 p.m., Mattawoman Creek Art Center, Smallwood State Park, Route 224, Marbury. 301-743-5159. Free.
“Owl Prowl,” join a ranger in the forest to look for and listen to owls. Wear comfortable shoes and take a flashlight. 8-9:30 p.m., Calvert Cliffs State Park, 9500 H.G. Truman Parkway, Lusby. 301-888-1377 or firstname.lastname@example.org. $5 per vehicle.
Plant sale and exchange, hosted by the Calvert Garden Club. Homemade baked items, hot dogs and sodas will be sold. 9 a.m.-noon; plant exchange, 10 a.m.-noon., Historic Linden House, 70 Church St., Prince Frederick. 410-610-1787 or www.calvertgardenclub.com. Free.
Plant sale and exchange, sponsored by Sotterley Garden Guild. 9 a.m.-2 p.m., Historic Sotterley Plantation, 44300 Sotterley Lane, Hollywood. 301-373-2280. Free.
Scrapbooking day, learn new techniques; vendors available. 9 a.m.-7 p.m., Mechanicsville Volunteer Fire Department, 28165 Hills Club Rd. 301-884-4709. $40, includes two meals and crafting space.
Benefit concert, hosted by Huntingtown High School Key Club. Proceeds benefit the Sidney Kimmel Johns Hopkins Cancer Center in honor of Mary Casey. 10 a.m.-5 p.m., Huntingtown High School, 4125 North Solomons Island Rd. 410-414-7036. $10.
Drug Take-Back Day, to help reduce the abuse of prescription drugs. 10 a.m.-2 p.m., Calvert County Sheriff’s Office, 30 Church St., Prince Frederick; Mount Hope Community Center, 104 Pushaw Station Rd., Sunderland; Northeast Community Center, 4075 Gordon Stinnett Ave., Chesapeake Beach; Southern Community Center, 20 Appeal Lane, Lusby. 410-535-3733.
Roast beef dinner, takeout available. 4-7 p.m., Waters Memorial United Methodist Church, 5400 Mackall Road, St. Leonard. Adults, $15; children, 6-12, $7. 410-586-1716.
All-you-can-eat spaghetti dinner, 5-7 p.m., sponsored by the 2nd District Fire Department and Rescue Squad, 45245 Drayden Rd, Valley Lee. 301-994-9999. Adults, $10; ages 6-12, $5.
Oldies dance, cash bar, food available. 7 p.m.-midnight, American Legion Post 206, 3330 North Chesapeake Beach Rd., Chesapeake Beach. 301-855-6466 or www.alpost206.org. $10.
“The Life of a Woman” concert, performed by Patuxent Voices. 7:30 p.m., All Saints Episcopal Church, 100 Lower Marlboro Rd., Sunderland. 410-474-2430. Donations accepted.
Skate Night, for all ages, hosted by the St. Mary’s County Recreation and Parks Department. Leonardtown Recreation Center, 23145 Leonard Hall Dr. 301-475-4200, Ext. 1800, or www.co.saint-marys.md.us. $5; skate rental, $2.50.
Mechanicsville Family Fun Day, to benefit Relay for Life. Includes vendors, raffles and music. 11 a.m.-
5 p.m., Mechanicsville Moose Lodge, 27636 Mechanicsville Rd. 301-884-5454. $10; children, $5.
“The Life of a Woman” concert, performed by Patuxent Voices. 3 p.m., Our Lady Star of the Sea Catholic Church, 50 Alexander Lane, Solomons. 410-474-2430. Donations accepted.
Concert, performed by OCC Gospel Choir, directed by Stephanie Hursey. 4:30 p.m., St. Paul’s United Methodist Church, 11000 H.G. Trueman Rd., Lusby. 443-295-3202. Donations accepted.
“Peace to You” concert, presented by Chesapeake Community Chorus. Gospel, Christian and secular music. 5 p.m., North Beach Union Church, 8912 Chesapeake Ave., North Beach. 301-855-7477 or email@example.com.
Plant sale and exchange, sponsored by the Sotterley Garden Guild. Noon-3 p.m., Historic Sotterley Plantation, 44300 Sotterley Lane, Hollywood. 301-373-2280. Free.
Women’s golf clinic, learn basic skills, course etiquette and rules. 5-6:30 p.m., White Plains Golf Course, St. Charles Parkway and De Mar Road. 301-843-2947. $75.
Town meeting, with Charles County Commissioner Vice President Reuben B. Collins III. 7:30 p.m., Capital Clubhouse, 3033 Waldorf Marketplace, Waldorf. 301-932-4348.
Historic house tours, guided walks around Point Farm’s house (1933) and gardens. 10 a.m. and 1 p.m., Jefferson Patterson Park and Museum, 10513 Mackall Rd., St. Leonard. 410-586-8501 or www.jefpat.org. Free.
Monday morning movies, 10-11 a.m., Calvert Library Prince Frederick branch, 850 Costley Way. 410-535-0291 or 301-855-1862.
K-3 reading program “Kids Just Want to Have Fun.” 6:30-7:30 p.m., Calvert Library Prince Frederick branch, 850 Costley Way. 410-535-0291 or 301-855-1862.
Mail: Community Calendar,
Southern Maryland Local Living,
The Washington Post, 3 Church Cir., Annapolis, Md. 21401.