National Park Service staff recommended withdrawal of the National Historic Landmark status in 1996 due to a loss of the island 's historic integrity , but the island has retained its Historic Landmark status .
The island , however , has been heavily transformed by industrial development .
National Park Service staff recommended withdrawal of the National Historic Landmark status in 1996 due to a loss of the island 's historic integrity , but the island has retained island 's Historic Landmark status .
The island , however , has been heavily transformed by industrial development .