Spearfish Canyon Scenic Byway follows an old railroad grade that was abandoned after massive flooding in 1933. Old rail stops and mining camps include Savoy and Elmore. Spearfish Creek supports trout brought to the Black Hills from Colorado in 1899.
We were a little early for the full-on "turning of the leaves" which also meant we were leaf peeping on our own. It's one of the few areas in the state that has a large deciduous tree and shrub population, and it can be simply spectacular when you hit it just right. And very crowded, so plan carefully.