Utah is home to the world's largest man-made excavation, the Kennecott Copper Mine. The mine produces copper, gold, silver, and other minerals and is located southwest of Salt Lake City.
Box Elder County, located in northern Utah, has a rich and diverse history spanning centuries. The area was initially inhabited by Native American tribes, such as the Northwestern Shoshone and the Goshute, who roamed the region for thousands of years. European explorers, including John C. Frémont, first visited the area in the mid-19th century.

In 1851, a group of Mormon pioneers established the community of Brigham City in Box Elder County. They were drawn to the fertile land and abundant water sources, which allowed for agriculture and settlement. The county was named after the box elder trees that grew along the nearby rivers.

During the late 19th and early 20th centuries, Box Elder County played a significant role in the development of the railroad system in Utah. The transcontinental railroad line, completed in 1869, passed through the county, leading to increased trade and economic growth. The town of Promontory Summit in Box Elder County is famous for being the site where the Central Pacific and Union Pacific Railroads were linked, completing the first transcontinental railroad.

Agriculture has been a cornerstone of Box Elder County's economy throughout its history. The fertile soil and access to water from the Bear River have allowed for the cultivation of crops, such as wheat, sugar beets, and fruit orchards. The county is renowned for its Bear River Valley's fruit and vegetable production, earning it the nickname "Utah's Fruit Way." In addition to agriculture, the county has also seen industrial growth, particularly in the production of minerals and manufacturing. The Thiokol Chemical Corporation, now known as Northrop Grumman Innovation Systems, has played a significant role in the county's economy by manufacturing solid rocket motors for space exploration.

Today, Box Elder County continues to thrive as a combination of agricultural, industrial, and tourist communities. Its rich history and natural beauty attract visitors from all over, with attractions such as the Golden Spike National Historical Park and the Great Salt Lake contributing to its appeal. As the county moves forward, there is an intentional focus on preserving its heritage while embracing economic, cultural, and social growth for the benefit of its residents and visitors alike.

This timeline provides a glimpse into the major events and milestones that have shaped the history of Box Elder County, Utah.

  • 1851 - Box Elder County is settled by Mormon pioneers, with Brigham City serving as the county seat
  • 1855 - The construction of Brigham City's LDS temple begins
  • 1861 - Box Elder County is officially organized
  • 1869 - The completion of the First Transcontinental Railroad brings economic growth to the county
  • 1876 - The Bear River Massacre takes place near the present-day town of Battle Mountain in Box Elder County
  • 1890 - The county experiences a significant mining boom in Clifton and Thatcher
  • 1918 - The worldwide influenza pandemic hits Box Elder County, causing many deaths
  • 1930s - The Great Depression leads to economic challenges for the county
  • 1944 - The Utah Test and Training Range, a military reservation, is established in the county
  • 2002 - The county experiences destructive wildfires that burn thousands of acres