An unplanned, non injury roof fall was discovered by preshift mine examiner while making his checks and exam of mine. the fall occured between 4 45 pm on 9-1 and when it was discovered at 5:15 am on 9-2-04. the fall was at the 20th crosscut on #3 belt entry. it measured 0 to 8' thick, 35' long and 30' wide.