An Ashland County man died this week while mowing his yard.  According to the Ashland County Sheriff’s Office, 58-year old James Denny was mowing a hill on his property, on State Route 179, late Monday night when his riding tractor overturned, pinning him underneath it.  Denny was pronounced dead at the scene.  The Ashland County Coroner’s office determined there was no need for an autopsy.