Yellowstone County is named for the Yellowstone River, which is named for the yellow rocks found along the river.
Created: February 26, 1883
Billings 1883 – present
County Courthouse – Billings
Location: 217 North 27th Street / 3rd Avenue North
Built: 1956 – 1958
Architect: Chandler C Cohagen and Loners, Stoebe & Johnson
Contractor: C B Lauch Construction
Description: The building faces north and is an eight story buff colored brick, concrete and glass structure. The building has an entrance on the north and west sides with overhanging canopies. Brick facing runs horizontally on the first and top stories and vertically at the corners with a clock at the top of the northwest corner. The roof line is flat.
E – Treasure County
S – Big Horn County
Photos taken 2009 and 2015