Manhattan Bank Address: 2 N Railway Ave, Three Forks, MT 59752 Phone: (406) 285-0500 Hours: Mon: 9am-5pm Tue: 9am-5pm Wed: 9am-5pm Thu: 9am-5pm Fri: 9am-5pm Banks Other Businesses: First Security Bank at 320 Main St, Three Forks, MT 59752 Three Valley Insurance at 301 Main St, Three Forks, MT 59752 Grey Cliffs Ranch at 1915 Lakota Dr, Three Forks, MT 59752 Grey Cliffs Ranch at 1915 Lakota Dr, Three Forks, MT 59752