Mankato Kasota Stone is a premier quarrier and fabricator of the unique limestone found along the Minnesota River valley. We transform this material into a full line of building products, from veneers to sills and caps to landscape products, and any custom applications that is desired, in a wide variety of finishes. We have been a favorite of architects and builders nationwide since 1885 who require the highest quality building material that is distinctive, durable, and naturally beautiful.