Bob,
No offense to Lenny, whose pictures are usually worthy of being described as art, but I really enjoy your photos. They often take me back to 1970s railroading that I can now barely remember (I was born in 1970). Growing up in Cecil County, Maryland along the B&O Philly Subdivision and the Northeast Corridor, I now only have vague memories of railroading then. I can recall waiting for 100+ car freight trains at road crossings on the Northeast Corridor. Not only are those trains long gone, but so are the road crossings. I only wish I would have been old enough to have appreciated what I was seeing at that time. I'm sure there were GG1s, E44s, and all sorts of first and second generation locomotives that I cannot now recall witnessing first hand. But, your pictures help make that pill a little easier to swallow.
Thanks for bringing these memories back and making them a lot clearer.
DFF