Founded in 1680 by Jacob Rutsen, Rosendale was a quiet hamlet until 1825, when natural cement was discovered, giving rise to one of the largest industries in Ulster County and New York State. At its peak, Rosendale's cement industry produced 10 million barrels of natural cement a year, employing 5,000 miners in more than a dozen mines. The creation of artificial cement, however, heralded the end of Rosendale cement. Rosendale rebounded, marketing...