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    So I got to Echo still not entirely sure why there was a back-up. It soon became apparent the causes. First this is double track land and from here at Echo eastward there was a tie gang doing a major replacement job on the north rail, the typical eastbound track. So one track out of service which was the first problem; the second was the stalled stack sitting in the center siding at Echo, which for some reason couldn't be run around by the following eastbounds. I never looked to see if it was hanging out of the west end of the siding, but whatever the reason, everyone was waiting for them to be rescued by a helper crew. See following images...