Courthouses in Three Forks, Montana, the US. Courthouses locations in Three Forks, Montana. Find the nearest courthouses locations, near you. All types of business services ATM Bank Courthouse Finance Funeral home Insurance Real estate School Travel All courthouses in Three Forks Three Forks City Court Courthouse +1 406-285-3444 206 North Main Street, Three Forks, Montana 59752 Write a review Phone Website Directions