Cascade County is named for the Great Falls of the Missouri River which are located in the county.
Surrounding County Courthouses:
N – Teton County and Choteau County
E – Choteau County and Judith Basin County
S – Meagher County
Created: September 12, 1887 
County Seat:
Great Falls 1887 – present
County Courthouse – Great Falls
Location: 415 2nd Avenue North / 4th Street North
Built: 1901 – 1902
Style: French Renaissance and Beaux Arts
Architect: H N Black & Frank Longstaff
Contractor: Lease & Richards of Great Falls.
Description: The building faces south and is a three story buff colored sandstone block and concrete structure with slight modifications. The building is located on spacious landscaped grounds in the center of Great Falls. On the south side, the columns are solid Tennessee marble rising to the roofline. In the center of the building is a round stone tower with dark green colored copper roof and Statue of Justice. The east and west project from the main building. The interior of the building remains mostly unaltered except for dropped, acoustical tiled ceilings covering updated mechanical and electrical systems, aluminum doors at all entrances, and wood paneling in some offices throughout the building. The floors at the rotunda are the original mosaic tile. Four marble niches are located at the second level rotunda piers. Beveled glass windows light the handsome stair which features an ornate, iron balustrade and marble treads. The opening at the apex of the inner dome reveals the inside of the taller dome which is painted to represent the blue sky with such skill as to give the effect of great height and di stance. The columns lining the rotunda are of Tennessee marble and the craftsmen’s skill is displayed in the beautiful mouldings and detailing throughout the structure.
See: National Register of Historic Places – Cascade County Courthouse
History: The county was created in 1887 and Great Falls was designated as the county seat, The county offices were housed in a group of downtown premises including the Grand Hotel at Central Avenue and 5th Street for fifteen years. The county offices moved to 1st Avenue North and 3rd Street. The first and present courthouse was constructed in 1901 to 1903
County Courthouse – Great Falls
Photos taken 2006, 2009 and 2016