"All 4's", on this westbound CSX autorack train as it exits the 1931 built tunnel and heads across the Potomac River into Harper's Ferry, WV. This is the CSX Cumberland Subdivision that sees trains headed to and from Baltimore and Washington, D.C. Railroad action usually takes place in spurts as this was the third of seven freight trains that came through Harper's Ferry in a span of two hours. Three of which came within fifteen minutes of each other.
