However, always helpful, Don did suggest that I play a bit with the sky and background mountains to try to get more detail from that area of the image. I thought it would be hard to do, because my recollection was that it was quite misty in the distance. But when I got home from the salon, I opened the image in Lightroom and saw that I had never really done anything to the picture except click on the black and white button, and everything else was set at the usual Lightroom defaults. I do own Nik filters and was surprised I hadn't tried any of them. So, before going to bed, I exported the RAW file to Nik Silver Efex Pro as a 16-bit TIFF file and simply clicked on several of the 20 or so presets to find one I liked. The presets are great. You can start with any one preset and then make adjustments using a number of sliders. In this case I chose "high key", hit the "okay" button, and the image file popped back into Lightroom. Simple and sweet.
I'm not sure whether this is what Don had in mind or not, but I absolutely love the result, and I thank him for his suggestion.