The Hudson River has always been a major avenue of New York State's economy. During the 19th century, many industries, large and small, sprang up along its shores. To the south of Stony Point, beds of rich clay near Haverstraw Bay were utilized to make 150 million bricks per year by 1860. Tompkins Cove, north of Stony Point, became the center of a large quarrying operation, which in the mid-19th century produced one million bushels of lime yearly. Commercial sailing ships were seen on the Hudson as late as the first decades of the 20th century, carrying goods to ports up and down the river.