Visible from east of Twin Falls, Oregon Trail travelers used Teapot Dome as a major landmark. The hike to the dome, an undeveloped 1000-foot ascent to the top, offers an excellent view of the valley. There are well-preserved Oregon Trail ruts along the trail here.
Southwestern Idaho, SE of Boise
Hwy. 20 NE from Mountain Home about 6 miles (1/4 mile before Rattlesnake Historical Site) and turn right on Hot Springs Road. Follow the road about a mile and you will see the dome