​MARYSVILLE, a county-seat of Yuba co., Cal., on Yuba and Feather rivers, the southern Pacific railroad, 52 miles N. of Sacramento. Has considerable navigation and trade, and contains Notre Dame College, and buildings in the Spanish style. Iron foundries, fruit canneries, woolen mills, and gold dredging employ many hands. Pop. (1910) 5,340; (1920) 5,461.