Since 1989. Celebrate the green, gold and purple Texas style during Jefferson's Mardi Gras Upriver each year. Three parades, carnival, food vendors, arts and crafts, live music along with fun, frivolity and zany events during this 3-day celebration. Friday evening begins with a Doo Dah Parade. Saturday features a Grand Parade with colorful floats, marching bands and more. Sunday allows the kiddos to get in on the action with a Children's Parade. Celebrate Jefferson's history during this colorful and entertaining event.