Stockman Bank of Montana, Stockman Bank Of Montana Basic Info Reviews Routing Numbers Map & Direction Name: Stockman Bank of Montana, Stockman Bank Of Montana Main Office: Yes Service: Full Service Brick and Mortar Office Location: 700 Main Street Miles City, Montana 59301 Custer County View other branches Phone: 406-234-8420 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer092902446YN092904570YN092905249YY From: To: