If you're ever in the Scranton PA area in the summer, visit the Lackawanna Coal Mine, part of the Anthracite Heritage Museum. Cost is $10. Take a light jacket

If you're ever in the Scranton PA area in the summer, visit the Lackawanna Coal Mine, part of the Anthracite Heritage Museum. Cost is $10. Take a light jacket as it's cool down there. Fact I learned on the tour - the wooden supports you see in the old mines aren't there to support the roof. They're there to provide warning (when they break) that the roof is coming down.