Larry, the Conecuh Valley RR runs about 8 miles from Troy to Goshen, Alabama on former Central of Georgia trackage. Their only connection is with CSX in Troy. As far as I know, they only have three units. The third one, #52 is also an SW-1500. The Conecuh Valley is owned by Gulf and Ohio (G&O) Railways.
Jon, they seem to run those two together most of the time.
Ralph, I like the paint scheme, too. Simple, but elegant in a way.
Here is a picture of #52.
John