A Union Grove farmer was killed yesterday morning when the tractor he was driving went out of control on the side of a mountain and wrecked.

Lee Griggs, 58, Union Grove Rt. 2, was killed instantly.

Marshall County Coroner Ray White said Griggs was driving a tractor pulling a wagon of silage up a dirt road on the side of Parches Cove Mtn. when the accident occurred.

The coroner said the tractor, apparently during changing of gears up the mountainside, rolled backwards and overturned, pinning the victim inside the cab of the tractor. The accident occurred around 9:30 a.m., north of Union Grove, and about 16 miles north of Guntersville.