First Security Bank-West Yellowstone Address: 106 S Electric St, West Yellowstone, MT 59758 Phone: (406) 646-7646 Banks, Financing, Loans, Stock & Bond Brokers, Investment Securities Other Businesses: Yellowstone Basin Bank at 216 Grizzly Ave, West Yellowstone, MT 59758 Brandin Iron Inn at 201 Canyon Rd, West Yellowstone, MT 59758 Hibernation Station at 212 Gray Wolf Avenue, West Yellowstone, MT 59758 Gray Wolf Inn & Suites at 250 S Cyn St, West Yellowstone, MT 59758