The military ordnance found at the Butte-Silver Bow Landfill has been rendered safe.
The item was a 105mm projectile and was detonated by explosive ordnance technicians from Malmstrom Air Force Base.
Police are investigating the incident in an effort to determine the origin of the projectile.
Butte-Silver Bow officials extended their thanks to the Lewis & Clark County Sheriff's Office and Malmstrom Air Force Base for their assistance during this incident.
(JUNE 12, 2025) The Butte-Silver Bow Landfill is closed after unexploded military ordnance was found in the landfill.
Butte Sheriff Ed Lester says that an explosive ordnance disposal (EOD) team from Malmstrom Air Force Base is responding to the landfill to investigate the ordnance.
The Sheriff's Office has not identified what kind of military ordnance was found.
The item is in an isolated location at the landfill off Browns Gulch Road just west of Butte and south of Rocker, and does not appear to be a threat to the public, the sheriff said.
