A man accused of diverting a national park river to ease boat access to Lake Michigan has been convicted of two misdemeanors. In August 2022, a National Park Service ranger witnessed Howard digging with a shovel so the Platte River in the Sleeping Bear Dunes National Lakeshore would be diverted into one of the Great Lakes, prosecutors said in a court filing. “Within days, the natural power of the water and the constructed dam caused the river to divert and created a new channel to Lake Michigan that grew to approximately 200 feet (61 meters) wide,” Assistant U.S. Attorney Lauren Biksacky said.