A Fabulous Fourth The Fourth of July will be celebrated in Washington with a parade, dramatic reenactments, concerts and fireworks: The National Archives celebrates the 222nd anniversary of the adoption of the Declaration of Independence Saturday at 10 with a concert of patriotic music by the U.S. Army 3rd Infantry ("The Old Guard") Fife and Drum Corps; a dramatic reading of the Declaration of Independence; and cannon and musket fire by Colonial and British militia reenactment units. The activities take place outside the Archives, on Constitution Avenue between Seventh and Ninth streets NW (Metro: Archives/Navy Memorial). Free; call 202/501-5000. The National Independence Day Parade, Saturday from 11:45 to 2, features more than 60 units, including giant balloons, costumed characters and marching bands. It starts on Constitution Avenue at Seventh Street NW (Metro: Archives/Navy Memorial, Federal Triangle), and marches west on Constitution to 17th Street NW. Free; call 800/215-6405. The Freedom Jazz Festival, Saturday from 2 to 10, features the Loston Harris Trio, Band Burrage led by drummer Ronnie Burrage, the Leon Parker Quartet, Olu Dara, Gephard Ullman and his band Ta Lam Zehn, Broto Roy and his band American Raga, on Freedom Plaza at 13th Street and Pennsylvania Avenue NW (Metro: Metro Center, Federal Triangle). Free; call 202/783-0360. The American Roots Independence Day Concert, Saturday from 4 to shortly after 9, features Koko Taylor and Her Blues Machine, Hawaiian slack-key guitarist Ledward Ka'apana and Hawaiian vocalist Clyde "Kindy" Sproat, Don Vappie and the Creole Jazz Serenaders (New Orleans jazz), Marcia Ball (Louisiana boogie-woogie), Birmingham Sunlights (African American a cappella gospel), Eileen Ivers (Irish fiddle), the Derailers (Texas honky-tonk) and other groups. The concert is free and takes place at the Sylvan Theater on the southeast corner of the Washington Monument grounds (Metro: Smithsonian). Free; call 202/619-7275. Tony Danza hosts the Capitol Fourth Concert, Saturday at 8, as pianist Michael Feinstein, Metropolitan Opera star Harolyn Blackwell, Suzy Bogguss, Sha Na Na, Lesley Gore and Sandi Patti join the National Symphony Orchestra on the Capitol's West Lawn (Metro: Capitol South, Union Station). A full-scale dress rehearsal is set for Friday at 7:45; spectators are welcome. Free (the rain date is Sunday); call 202/467-4600. The annual fireworks show starts Saturday at 9:10 p.m. in the skies over the Washington Monument grounds. (Rain date Sunday.) Free; call 202/619-7275.

Traffic will be heavy and parking will be practically nonexistent along the Mall on the Fourth. The Metro system will be open from 8 a.m. until 1 a.m. on a modified Saturday schedule.

Metro advises passengers to buy round-trip farecards to avoid a wait. Bicycles will not be allowed on Metrorail on Saturday. For Metro information, call 202/637-7000. For recorded information about these events, call 202/619-7275.

A list of other Fourth of July events is on Page 70. Folklife Festival The diverse cultures of Estonia, Lithuania, Latvia and the Philippines, along with the state of Wisconsin and the Rio Grande/Rio Bravo Basin are the themes of the 32nd annual Smithsonian Folklife Festival, Friday through Sunday on the Mall between Seventh and 14th streets (Metro: Smithsonian, Federal Triangle). Events run from 11 to 5:30 each day and include music, foods, crafts and other activities. There's a dance party each evening from 5:30 to 7, and every evening from 7 to 9 (except July 4) there's a concert featuring music from festival programs. It's all free. For a recording of daily events, call 202/357-4574; for information, call 202/357-2700 (TDD: 202/ 357-1729, Spanish: 202/633-9126). The festival's Web address is: www.si.edu/folklife. Big Top, Hip-Hop The UniverSoul Circus, a predominantly black circus that features hip-hop and soul music and audience participation, sets up its tent at Capital Plaza, 6200 Annapolis Rd., Landover Hills, for performances Friday through July 19. The show features circus performers from around the world, including Monique Angeon from Martinique, billed as "the world's first black woman lion trainer." Shows are at 10:30 and 7:30 Tuesdays through Fridays; Saturdays at noon, 4:30 and 8 (noon, 3:30 and 6:30 July 4); and Sundays at noon, 3:30 and 6:30. Tickets are $8 to $40; all tickets to the 10:30 a.m. shows on weekdays are $8. Call Ticketmaster, 202/432-7328 (service charges). The Passion Of Spain Noche Flamenca lights up Wolf Trap's Filene Center Friday at 8 with an evening of traditional Spanish music and dance. Tickets are $22 in-house, $10 on the lawn. Wolf Trap Park is at 1551 Trap Rd., Vienna; call Protix, 703/218-6500. Civil War Redux More than 15,000 Civil War reenactors will take part in a reenactment of the Gettysburg battle, Friday from 8:30 to 8, Saturday from 8:30 to 8 and Sunday 8 to 4 outside Gettysburg, Pa. Activities include battle re-creations Friday at 4, Saturday at 10, 1, 2 and 4 and Sunday at 9:30 and 1:30; music; historians' talks on the battle and other activities. One-day tickets are $14, $10 children 6 through 12 (younger free any day); two-day tickets are $24, $18 children; and three-day tickets are $35, $24 children. The reenactment takes place on a farm near Gettysburg. Take I-270 north to U.S. 15 north to Steinwehr Avenue/Gettysburg, turn left on Bullfrog Road and follow signs. Visitors are urged to bring chairs or blankets; for tickets, call 800/928-1863 or 717/337-9483. Rest of the Best Red Letter Day, the Instigators and Eastern Standard Time perform at the free Weekend's Weekend concert, Friday at 8 at Carter Barron Amphitheatre, 4850 Colorado Ave. NW (16th and Colorado). The concert is free, but tickets are required. The tickets will be distributed at the Carter Barron box office, beginning Friday at 10. Call 202/334-4748 ... Concerts by Three Dog Night, Percy Sledge and the Fabulous Hubcaps and fireworks are featured at the Happy Birthday America Concert, Sunday from 6 to 10 at the Prince George's Stadium, Routes 301 and 197 in Bowie. The concert helps benefit the Prince George's County Special Olympics; tickets are $17.50 and $22.50; call Ticketmaster, 202/432-7328 (service charges). CAPTION: The sky above Washington will explode with light on Saturday. CAPTION: Noche Flamenca appears at Wolf Trap on Friday. CAPTION: Clowning around at the UniverSoul Circus.