National Register Listing

Big Horn River Bridge

Milepost 2 on MT 104 (Old US 10), Custer, MT
Local significance of the structure:
Engineering; Transportation

Listed in National Register of Historic Places in 2010.

The National Register of Historic Places is the official list of the Nation’s historic places worthy of preservation. Authorized by the National Historic Preservation Act of 1966, the National Park Service’s National Register of Historic Places is part of a national program to coordinate and support public and private efforts to identify, evaluate, and protect America’s historic and archeological resources.

bridges
The Battle of the Little Bighorn, also known as Custer's Last Stand, took place in Montana in 1876. It was a significant battle in the Sioux Wars and was fought between the United States Army and a coalition of Native American tribes, including the Lakota, Northern Cheyenne, and Arapaho.
Montana random facts
Treasure County is a county located in the state of Montana in the northwestern United States. It was established on February 7, 1919, and takes its name from the surrounding area's reputation as a treasure trove of mineral resources. The county's rich history dates back long before its official establishment, with evidence of Native American presence in the area dating back thousands of years.

During the late 19th century, the discovery of gold and other valuable minerals brought a wave of prospectors and settlers to Treasure County. The region experienced a mining boom, and towns such as Mystic and Coalwood sprang up to support the mining operations. However, these towns saw a decline in population and economic activity as the mining industry waned in the early 20th century.

In the early years, agriculture played an important role in the county's economy, with ranching and farming becoming the mainstay for many residents. Cattle ranching, in particular, remains a significant component of Treasure County's agricultural industry to this day. The county's fertile soils and favorable climate also support the cultivation of various crops, including wheat, barley, and hay.

Since its establishment, Treasure County has had a small and close-knit community. With a sparse population spread out across its vast landscapes, the county offers a rural and tranquil lifestyle. Today, it continues to embrace its natural beauty and agricultural heritage while also attracting outdoor enthusiasts who appreciate its abundance of recreational opportunities, including hunting, fishing, and camping.

This timeline provides a glimpse into the major events and milestones that have shaped the history of Treasure County, Montana.

  • 1864: Treasure County is established.
  • 1876: The town of Hysham is founded.
  • 1881: The first post office is established in Hysham.
  • 1919: The Montana Legislature establishes the county seat in Hysham.
  • 1920: The county courthouse is built in Hysham.
  • 1922: Treasure County High School is built in Hysham.
  • 1933: The first bridge across the Yellowstone River is constructed.
  • 1968: The coal mine in Sanders begins operations.
  • 1970: The county population reaches its peak at over 1,500.
  • 1984: The coal mine in Sanders closes, leading to a significant decline in population.
  • 1993: The town of Bighorn is incorporated.