Check your calendar. The Fourth of July is coming up everywhere -- not just down at Fort Vancouver. Somehow or other, our historic site doesn't seem to own that date. The Fort's daylong Independence Day celebration is legendary, of course. And this year is shaping up to be yet another doozy -- with the always-popular Sing Fourth teen vocal contest kicking off many hours of live entertainment; children's parade, games, contests and many more family activities; plenty of food and drink for all, plus an Adult Beverage Pavilion that's only for some; and, at 10:05 p.m.