5 The Otter Tail County Government Services Center in Fergus Falls will be CLOSED Friday, March 17 12:00 PM - 4:30 PM for staff training. OTTER TAIL COUNTY-MINNESOTA Government Services Center will re-open Monday, March 20 at 8:00 AM. 5 The Otter Tail County Government Services Center in Fergus Falls will be CLOSED Friday , March 17 12:00 PM - 4:30 PM for staff training . OTTER TAIL COUNTY - MINNESOTA Government Services Center will re - open Monday , March 20 at 8:00 AM .