It was originally a Nevada-California-Oregon Railroad station and later a Southern Pacific Railroad siding that operated from 1930-1961. In a way it is a bit of misnomer, since it is located five miles east of Horse Lake and near Snowstorm Ranch.
In 1913, the Shumway Post Office at Horse Lake was discontinued. In 1916, Horse Lake residents attempted to re-establish the post office and have a mail drop off at the NCO Railroad’s Horse Lake siding. The postal authorities denied the request. They stated they did not need a mail drop as that there were only four permanent families residing in the area. In addition, it was cited, the NCO was an unreliable operation, with irregular train service, and since there was no attendant at the Horse Lake Station, there was no way that the mail could be protected.
Is that the spot where there was a derailment in the mid 70’s?
Yes, right in that vicinity.