Sydney Mines HeritageThe Sydney Mines Heritage Museum tells the story of hundreds of years of coal mining as well as the rich history of steel making as we boasted the largest and most modern steel plant in North America.We hope you enjoy exploring some of our collection of artefacts and memorabilia on this Museum website. Then come and experience the Cape Breton Fossil Discovery Centre , a must-see on your next visit to Cape Breton Island. See 300-million-year-old plant fossils from the rich deposits of the Sydney coal field, enjoy stories from our guides and explore the coastline to find your own hidden treasure.The Centre is an excellent place for school children to learn about fossils and the history of our region. Bring the entire family for a day of fun and exploration! more... See more text