Are there any car rental agencies in Keystone, SD?

I don't believe that there is a car rental agency in Keystone, there is in Rapid City which is about twenty miles (give or take five), north on highway 16. I live in Sturgis and have been to Keystone on quite a few occasions and don't remember one being there of course I wasn't looking for one either. I just looked in the phone book and there are no care rental agencies in Keystone, however like I said there are several of them in Rapid City.