Owen Sound Ledgerock Ltd., often called Ledgerock, is a limestone extraction and stone cutting company. Established in 1958, Ledgerock is one of the most complete quarrying and fabricating companies in North America. The company currently operates four quarries in Southwestern Ontario which yield some of the world's most spectacular limestone. Ledgerock is the leading producer of Eramosa Marble / Limestone, Algonquin Limestone, Hope Bay Limestone and Mara Limestone products. For more than sixty years, Ledgerock has supplied stone throughout the world for a wide array of commercial, residential and landscaping projects. The company's state-of-the-art facilities combined with our technical drafting and project management expertise allows us to undertake any size of project. Imagine it; we can help you build it.