This 1899 map of Beaverhead County, Montana, provides a detailed cartographic representation of the county’s geography, settlements, and natural features at the turn of the 20th century. Located in the southwestern corner of Montana, Beaverhead County borders Idaho to the west and south and is defined by its rugged mountainous terrain and significant rivers.
The map prominently features the county seat, Dillon, situated near the Beaverhead River, which flows through the eastern portion of the county. Other key settlements include Bannack, the first territorial capital of Montana, and Wisdom in the Big Hole Valley. Smaller towns and mining camps such as Glendale, Hecla, and Argenta reflect the county’s early reliance on mining and agriculture. The map also notes Lima in the southern region, positioned near key transportation routes.
The county’s physical geography is emphasized through its depiction of mountain ranges, such as the Rocky Mountains along its southern and eastern borders. The Big Hole Pass, part of the Rocky Mountain range, is a notable feature connecting the county to neighboring areas. Rivers and creeks, including the Beaverhead, Red Rock, and Grasshopper Creek, are meticulously detailed, highlighting their importance to the region’s development.
At the time of this map’s publication, Beaverhead County was transitioning from its early mining boom to a more diversified economy that included ranching and farming. The inclusion of former mining centers such as Hecla and Bannack provides a historical snapshot of the county’s early economic drivers, while the prominence of Dillon reflects its role as a transportation and commercial hub.