Color brochure for Yosemite Valley produced by Southern Pacific Railroad (SPRR). Illustrations on front cover are Half Dome. Yosemite National Park, circa 1924.
The Great Northern Railway, which had a monopoly at Glacier National Park, encouraged wealthy Easterners to "see America first" rather than vacationing in Europe in the 1910s.
In 1872, when Yellowstone became the world's first national park, Lewis Carroll's "Alice's Adventures in Wonderland" was already a best-seller. Hoping to capitalize on it – and on the natural wonders of Yellowstone – the Northern Pacific Railroad distributed brochures linking the two. For the first decades of the park's existence, the railroad was essentially in control, until the Army was sent in.