This edition is greatly expanded from yesterday’s 1913 version, with 50 percent more interior pages and what appears to be completely different text. From archive.org, we can see that a 1915 edition is substantially the same as this one. The front cover is supposed to represent John Colter and Native American guides, while (as shown below) the back is a continuous scene showing modern-day tourists.
Maybe I just like color, but none of the NP geyser booklets compare with Union Pacific’s 1910 Where Gush the Geysers, which has numerous color lithographs that are far more appealing than the black-and-white photos in the Northern Pacific booklets. We know that NP’s reluctance to spring for full-color pictures in its advertising continued at least through 1948.