The South Boise Historic Mining District, in Elmore County, Idaho and including Rocky Bar, Idaho, is a historic district which was listed on the National Register of Historic Places in 1975.

It includes the ghost town of Rocky Bar and a good part of a large basin in which there was a great amount of gold mining.

[2] Rocky Bar has a historic cemetery, which among other graves has the grave of Idaho's territorial governor (acting) Clinton DeWitt Smith, whose death in Rocky Bar effectively halted governance of the territory.

[2] It includes Spanishtown, a few miles from Rocky Bar on Elk Creek, with similar utilitarian structures.

This article about a property in Idaho on the National Register of Historic Places is a stub.