Sunday 9 ORIENTEERING PROGRAM, learn to use a map and compass. Sponsored by the National Park Service. 9 a.m.-noon, Turkey Run Environmental Center, Prince William Forest Park, Park Entrance Road, Triangle. Free; reservations required. 703-221-7181.

Monday 10 TEEN ADVISORY COUNCIL, to suggest library programs for middle and high school students. 7 p.m., Chinn Park Regional Library, 13065 Chinn Park Dr., Woodbridge. 703-792-4800.

LONG-TERM CARE PROGRAM, a financial adviser discusses options; sponsored by the Prince William Public Library System. 7-8 p.m., Potomac Community Library, 2201 Opitz Blvd., Woodbridge. 703-494-8126.

MANASSAS ART GUILD, 7 p.m., Century 21 Capital Realty, 8803 Sudley Rd., Manassas. 703-753-2783.

Tuesday 11 LIBRARY STORY HOUR, for preschool groups of five or more children and their day care providers; sponsored by the Prince William Public Library System. 10:30 a.m., Potomac Community Library, 2201 Opitz Blvd., Woodbridge. Free. 703-494-8126.

WRITERS ROUNDTABLE MEETING, to provide local authors with fellowship, resources and editorial assistance. 7:30 p.m., Francis Cannon VFW Hall, 9304 Centreville Rd., Manassas. 703-494-4260.

LIBRARY STORY TIME, for children 2-3, sponsored by the Prince William Public Library System. 10:30 and 11 a.m., Bull Run Regional Library, 8051 Ashton Ave., Manassas, 703-792-4500; for children 3-6, 10:30 a.m., Chinn Park Regional Library, 13065 Chinn Park Dr., Woodbridge, 703-792-4800. Free; registration requested.

DISABLED AMERICAN VETERANS, Eastern Prince William County, Chapter 48 and Auxiliary. 7:30 p.m., Dale City Fire Department, Dale Boulevard and Hillendale Drive, Dale City. 703-451-4554.

DIABETES SUPPORT, for patients and family members, sponsored by Potomac Hospital. 7 p.m., Potomac Center (next to the hospital), Suite 320, 2296 Opitz Blvd., Woodbridge. 703-221-2500.

ALZHEIMER'S SUPPORT, sponsored by the Prince William Senior Center. 7 p.m., 13850 Church Hill Dr., Woodbridge. 703-497-0741.

WEB PAGE WORKSHOP, a four-week course on creating a Web page; sponsored by Manassas Park Department of Parks and Recreation. 7 p.m., Tuesdays through March 4, Manassas Park High School, 8200 Euclid Ave., Manassas Park. $40; registration required. 703-335-8872.

BULL RUN TROUBADOURS, 7:30 p.m., Trinity Episcopal Church, Battle and Church streets, Manassas. 703-753-2249.

Wednesday 12 SCRAPBOOK CLASS, with tips on organizing your pictures; sponsored by the Manassas Park Department of Parks and Recreation. 7 p.m., Costello Park Recreation Center, 99 Adams St., Manassas Park. $5; registration required. 703-335-8872.

LIBRARY STORY TIME, sponsored by the Prince William Public Library System. For children 2-3, 10:30 a.m., Potomac Community Library, 2201 Opitz Blvd., Woodbridge, 703-494-8126; for children 3-6, 4 p.m., Bull Run Regional Library, 8051 Ashton Ave., Manassas, 703-792-4500; for children 3-8, 4 p.m., Chinn Park Regional Library, 13065 Chinn Park Dr., Woodbridge, 703-792-4800; for children 2-5, 10:30 a.m., Central Community Library, 8601 Mathis Ave., Manassas, 703-361-8211. Free' registration requested.

PARENTING CLASSES, for those with young children, sponsored by the Prince William Cooperative Extension Service. 7-9 p.m., Wednesdays through March 19, Bethel United Methodist Church, Minnieville and Smoketown roads, Woodbridge. $35; registration required. 703-792-6288.

PARK AUTHORITY BOARD MEETING, 7 p.m., Prince William County Park Authority Headquarters, 14420 Bristow Rd., Manassas. 703-792-4296.

PRINCE WILLIAM CHESS CLUB, 7-9 p.m., Chinn Park Regional Library, 13065 Chinn Park Dr., Woodbridge. 703-670-5887.

TOASTMASTERS INTERNATIONAL, Lake Ridge Club No. 8913. 7:30 p.m., Tall Oaks Community Center, 12399 Hedges Run Dr., Lake Ridge. 703-494-5530.

WRITERS GROUP, 7:30 p.m., Borders Books & Music, 2904 Prince William Pkwy., Woodbridge. 703-897-8100.

Thursday 13 TEEN BOOK CLUB, for grades 6-12, sponsored by the Prince William Public Library System. 7 p.m., Bull Run Regional Library, 8051 Ashton Ave., Manassas. Registration requested. 703-792-4500.

ENVIRONMENTAL PROGRAM, on urban land conservation, sponsored by the Prince William Conservation Alliance. 7:30 p.m., fourth-floor conference room, Prince William Hospital, 8700 Sudley Rd., Manassas. Free. 703-367-0069.

LIBRARY STORY TIMES, sponsored by the Prince William Public Library System. For children 4-6, 10:30 a.m., Bull Run Regional Library, 8051 Ashton Ave., Manassas, 703-792-4500; for children of all ages, 10:30 a.m., Potomac Community Library, 2201 Opitz Blvd., Woodbridge, 703-494-8126; for children 6-12, 3 p.m., Potomac Community Library, 2201 Opitz Blvd., Woodbridge, 703-494-8126. Free; registration required.

CANCER SUPPORT, for patients and family members, sponsored by Potomac Hospital. 7 p.m., Potomac Center (next to the hospital), Suite 320, 2296 Opitz Blvd., Woodbridge. 703-221-2500.

MYSTERY BOOK CLUB, a discussion of "Hotel Paradise," by Martha Grimes. Sponsored by the Prince William Public Library System. 7 p.m., Bull Run Regional Library, 8051 Ashton Ave., Manassas. Registration requested. 703-792-4500.

Friday 14 LIBRARY MOVIES, for children 3-7, sponsored by the Prince William Public Library System. 10:30 a.m., Chinn Park Regional Library, 13065 Chinn Park Dr., Woodbridge. Free. 703-792-4800.

USED-BOOK SALE, sponsored by the Friends of Chinn Park Regional Library. 10 a.m.-4:30 p.m. today and Saturday; noon-3 p.m. Sunday. Chinn Park Regional Library, 13065 Chinn Park Dr., Woodbridge. 703-792-4890.

BACK DOOR FRIENDS, noon, River Woods Community Center, 16573 Nanticoke Rd., Woodbridge. 703-221-5513.

LIBRARY MOVIES, for children, sponsored by the Prince William Public Library System. 10:30 a.m., Bull Run Regional Library, 8051 Ashton Ave., Manassas. Free. 703-792-4500.

Saturday 15 FASCHINGS BALL, sponsored by the German Club of Northern Virginia Inc. 7 p.m., Our Lady of Angels Church Social Hall, 13752 Mary's Way, Woodbridge. $12. 703-335-1387.

RECOVERY INC., for people experiencing anxiety, depression, fear and other emotional problems. 10 a.m.-noon, Saturdays, Cokesbury United Methodist Church, 14804 Blackburn Rd., Woodbridge. 703-490-5423.

INCOME TAX ASSISTANCE, through April 12, provided by Volunteer Income Tax Assistance; sponsored by the Prince William Library System. 10 a.m.-2 p.m. Saturdays, Bull Run Regional Library, 8051 Ashton Ave., Manassas; 10 a.m.-1 p.m., Chinn Park Regional Library, 13065 Chinn Park Dr., Woodbridge; 10 a.m.-2 p.m. Saturdays and 6-8 p.m. Tuesdays, Potomac Community Library, 2201 Opitz Blvd., Woodbridge. 703-792-4500, 703-792-4800 and 703-494-8126.

SCIENCE FICTION BOOK CLUB, a discussion of "The Stars My Destination," by Alfred Bester. Sponsored by the Prince William Public Library System. 2:30 p.m., Central Community Library, 8601 Mathis Ave., Manassas. Registration requested. 703-361-8211.

NATURE PROGRAM, about the interdependency of park wildlife; sponsored by the National Park Service. 9-11 a.m., Visitor Center, Prince William Forest Park, Park Entrance Road, Triangle. Free; reservations required. 703-221-7181.

LAND NAVIGATION PROGRAM, using maps, compasses and global positioning; sponsored by the National Park Service. 1-4 p.m., Parking Lot D, Prince William Forest Park, Park Entrance Road, Triangle. Free; reservations required. 703-221-7181.

PARENTS WITHOUT PARTNERS DANCE, sponsored by Chapter 1080. 8 p.m.-midnight, Woodbridge Elk's Lodge, 14501 Minnieville Rd., Woodbridge. $8, members; $10, nonmembers. 703-441-8182.

-- Compiled by Camille Ross

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