Post Office - Lodge Grass 14 S Main St Lodge Grass, MT 59050 Phone : (406) 639-2911 Post Office - Lodge Grass Business Category Post Offices Toll-Free           (800) ASK-USPS Us Government--post Office 14 N Main Lodge Grass, MT 59050 Phone : (406) 639-2911 Business Category Government Offices-Federal Post Offices Government Offices & Public Schools