Thanks Graham, while at work my ISP wouldn't let me create an additional e-mail when I wasn't on their network.
But more notably, without a doubt that has got to be the exact thing that was at Othello. Too bad the photo doesn't have a close-up of those long metal housings on the inside of the rails. The wooden frames inside the rails looks about what I would expect from what was left at Othello.
"Two metal plates are also located on the inside edges of the adjacent tracks..." They must be connected to some type of potentiometer or limit switch to detect the irregularities in a broken flange. Anyone else want to take a stab at it?
With the help of knowing where it was, I decided to look on Google Earth and I think I found it, immediately adjacent to the Grant-Kohrs Ranch. If you look in the photo supplied you can see a bridge for the other main off to the right. In the Google earth photo the angle for the bridge from the detector looks about the same.
At least when the photo was taken (perhaps in 2010 as the copyright says and it may not be correct) and from what I can see it looks as if the rails and two signal boxes are still there. The photos there are not as detailed to determine if the detector itself is still there.
Living only a short 645 miles from the detector, if anyone is driving through the town....want to go take a look? :)
46°24'23.59"N 112°44'17.67"W
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maps.google.com]
Again thanks Brent and Grant for all the help on this. It is very interesting to 'track' down old railroad history bit-by-bit like this.
-Kevin