Berea, OH on Depot Street. It has been my favorite for as long as I can remember. The CSX Greenwich Subdivision and (I think, I can't remember off the top of my head) the NS Cleveland line go through here. I usually see around four CSX and NS locomotives meet when I go up there. Usually CSX and NS, but it's easy to find Union Pacific and BNSF power on the CSX's and NS's as well. Here's a photo of part of the yard. (Not mine)
