Castle Rock

Historical marker location:

Mountain Home, Idaho

( Marker is on Sun Valley Highway (U.S. 20 at milepost 124) near North Cat Creek Road, on the right when traveling west.)

In the late 1800s, Idaho experienced a gold rush that attracted thousands of people to the state in search of riches. One of the most famous mining towns was Custer, which was home to more than 15,000 people at its peak but was eventually abandoned after the gold ran out.