Historical Markers in
Elmore County, Idaho

Canyon Creek Station Castle Rock Glenn's Ferry Gold Mines Goodale's Cutoff Idaho's Bicentennial Wagon Motor Homes Without Motors Mountain Home Arrives in a 50-pound Soapbox Mountain Home Irrigation District Oregon Trail Oregon Trail 1864 Over 500 Miles Step-by-Step Rattlesnake Station Rosevear's Ferry Site 1 ★ Two Island Crossing Site 2 ★ Old Oregon Trail Road Crossing Site 3 ★ Hot Springs Creek Site 4 ★ Hot Springs Site 5 ★ Rattlesnake Creek Site 6 ★ Kelton Road Site 7 ★ Canyon Creek Site 8 ★ Ditto Creek Site 9 ★ Bowns Creek The Oregon Trail The Three Island Ford To All Pioneers Toll Gate "A Most Dangerous Crossing"
Idaho played a key role in the development of atomic energy. During World War II, the federal government established the Idaho National Laboratory in eastern Idaho, which was used to research and develop nuclear technology. Today, the lab is one of the leading research facilities in the world for nuclear energy and other forms of advanced technology.
Idaho random facts
Elmore County, located in southwestern Idaho, has a rich history that dates back several centuries. The area was initially inhabited by Native American tribes, such as the Shosone and Bannock, who relied on the resources of the Snake River and adjacent land for sustenance and trade.

In the early 1800s, European explorers and fur trappers started arriving in the region, including famous names like Meriwether Lewis and William Clark. Their expeditions and encounters with Native American tribes established ties between the newcomers and the local inhabitants. However, it wasn't until the mid-1800s that settlers began to permanently inhabit the area, attracted by the fertile soil and potential for agriculture.

The establishment of Fort Boise in 1863 marked a significant turning point in Elmore County's history as it served as a vital military outpost during the Oregon Trail era. The fort provided protection for settlers and facilitated communication and trade between different regions. With the railroad's arrival in 1883, Elmore County experienced further growth and development, becoming a transportation hub in the region.

The 20th century brought new challenges and opportunities for Elmore County. Agriculture, mining, and timber industries flourished, contributing to the county's economy. Simultaneously, the construction of irrigation systems greatly enhanced agricultural productivity. Today, Elmore County continues to thrive, offering a mix of rural charm, natural beauty, and historical significance, making it a destination for outdoor enthusiasts and history buffs alike.

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

  • 1864 - Elmore County is established on February 7, 1864, as a part of the Idaho Territory.
  • 1879 - The county seat is moved from Rocky Bar to its current location in Mountain Home.
  • 1893 - The Oregon Short Line Railroad is completed, providing transportation and boosting the local economy.
  • 1905 - The Mountain Home Air Force Base is established as a training site for military aviators.
  • 1915 - Anderson Ranch Dam is constructed, providing irrigation water and hydroelectric power to the region.
  • 1951 - The Mountain Home Air Force Range is established as a bombing and gunnery range.
  • 1989 - The census-designated place of Pine and Featherville merge to form a new city called Pine-Featherville.
  • 2007 - Elk City Dam is completed, adding a new source of water storage for irrigation and recreation.