First, running long-hood-forward (appropriate on this ex-Southern Line), we have Yadkin Valley Railroad YVRR 3200, a Knoxville Locomotive Works KLW SE32C. This locomotive started out as an EMD SD40 in May of 1971, built for Norfolk & Western as NW 1611, then, after the SOU/NW merger it became Norfolk Southern NS 1611. At some point it was sold to KLW, who then rebuilt it into the current configuration. KLW is an affiliate of Gulf & Ohio, who owns and operates the YVRR. The SE32C has a German MTU (full name - MTU "Motoren- und Turbinen-Union" Friedrichshafen GmbH (I've seen "GmbH" after many German companies, and it stands for "Gesellschaft mit beschränkter Haftung). In english, this all means Motor and Turbine Union Freidrichafen LLC. Freidrichsafen is where they're headquartered, and the GmbH translates directly as "company with limited liability".
I think this unit looks sharp, and it's clean as a bonus. Not really a fan of the German engine though.
Also note, if you look REALLY closely, where the YVRR sign is on the building, you can see where there was once a larger circular sign. Could've been an older YVRR logo, or even an old Southern sign.
Moving on, we have an EMD SW1000, #69 to be exact.
I'm pretty sure on the SW1000, but I had a hard time finding info on this one, so the owner and reporting marks are absent.
Also note the assortment of lights on the corner of the cab near the steps - these are status indicators for operators, as this unit can be operated via remote-control, with no crew aboard.
On to more mundane units now.
We have Norfolk Southern NS 3676, a GE ET44AC, built around 2016 or '17.
Another NS GE, this time 4425, an AC44C6M. The AC44C6M units are actually rebuilds of older units; they remain basically unchanged cosmetically, as the rebuild was mostly a mechanical rebuild/update. I think they were repainted, as well.
And lastly, 3661, a GE ET44AC. It was built as an ES44AC. When and why it was modified, and what the mods were, I don't know.
That's all for this round folks, thanks for looking!