Sylvan Pass Closed For Explosive Emergency
The discovery of unexploded ordnance has temporarily closed the road over Sylvan Pass to Pahaska which is east of the east entrance to Yellowstone National Park, according to a news release from park on Friday afternoon.
The ordnance is left over from avalanche hazard mitigation work.
The device was found this afternoon near the roadway of U.S. Highway 14/16/20.
The closure is expected to last a few hours while a team from Malmstrom Air Force Base in west-central Montana responds and destroys the device.