DELAWARE - The Delaware Mine dates back to the 19th century. But another one on the property goes back even further.
From 9:30 to 10:30 a.m. Saturday, the mine will have a grand opening to show off a new trail with fencing leading to a prehistoric copper mine, as well as an interpretive sign.
The prehistoric copper mine is estimated to be between 3,000 and 5,000 years old, said Delaware Mine owner Tom Poynter. The mine will be incorporated into the site's self-guided tour.
"We'll tell the people about it, and they can walk down to see it," he said. "We'll have a sign there so they can find it and see it without searching through the woods."
National Park Service personnel will also be on hand for the ceremony at the Delaware Mine, one of the Keweenaw National Historical Park's Heritage Sites.
Work on the trail began last summer, Poynter said. The idea came about when Bob Wheeler, part of the Ancient Artifacts Preservation Society, approached Poynter about opening the site up to show to the public.
The mine is on U.S. 41 12 miles south of Copper Harbor. For more information call 289-4688.