All. Taking what has been reported in this post, I think I have a solution that would cover all the bases without being exact. I have been poring over all known, at least to me, photos of the Black Canyon from Sapinero thru Cimarron. The rationale for this is that I am attempting to model the Black Canyon from Sapinero thru Cimarron. With this in mind I have concluded the following observations. Between Sapinero and Curecanti, the roadbed and the river are about on the same plane. Also the river seems to be "fairly" smooth in its appearance. I am using this as reference only here, as compared to later on down river. When we get to the section house at MP 323 +/-, the river begins to get choppy and drops off until it reaches Crystal Creek where there is a real difference in the planes and the water gets very rapid and rough. I would say that between MP 324 and 327 is where the Falls of the Gunnison are. Now as far as why these are not known, I will bet that Lathrop knew these from the Railroaders perspective and not a public perspective. Having retired myself from the railroad as a Conductor for both Seaboard Coast Line and Amtrak, plus working in New York State and Oakland, CA, I know an awful lot of places that WE called something and the public had no idea of what or where we were talking about. A bit of defense for Lathrop on "embellishment"? Maybe, but places and certain operating things do not get embellished. They are spoken as they were or happened because we were there as they saying goes. Now whether one agrees with me or not is moot, having worked for the industry lets me read into what has been written by those who have chronicled their careers. Just saying..............Paul.