A Michigan man has been sentenced for tampering with and vandalizing Sleeping Bear Dunes National Lakeshore, a popular tourist destination known for its pristine beauty. 63-year-old Andrew Blair Howard of Sparta and Frankfort was convicted in February 2024 of two federal misdemeanors for his actions in August 2022. According to court documents, Howard diverted the natural flow of the Platte River by digging up sediment and rocks, and building a makeshift dam to channel water towards Lake Michigan. U.S. Attorney Mark Totten said, “Mr. Howard had a policy dispute with the National Park Service o…