organ Shoal unfolds across nearly a mile of Chicago’s South Side, from 45th to 51st Street—a quiet drama of stone and history. Beneath the waves lies a 425-million-year-old Silurian reef. Just offshore, the ghostly remains of the Silver Spray, a 1914 passenger steamship, lie preserved in the shallows. These elements—the reef, the wreck, the pebbles—have […]
