From 1910 through the 1980s, automobile and parts manufacturing dominated Flint industry. Like the saw and flour mills that preceded them, the factories were centered west of downtown in the Flint River valley. Industry began here in 1865 with the Begole and Fox Lumber Company on the south side of the river. Lumber mills became wagon and carriage companies, which in turn evolved into automobile companies. In 1913 the Chevrolet Motor Company took over the Begole and Fox site in the valley. Known as "Chevrolet in the hole" due to its location, by 1934 the 80-acre complex employed 14,000 workers at 31 factories on both sides of the river. Facing a downturn in production General Motors began removing unused buildings in 1995. The last one, Plant 4 was razed in 2004.