The Yellowstone Highway, an “auto trail” mapped, maintained, and promoted by local businesses and “good roads” club,”was established in 1915, the year Rocky Mountain National Park was created and the year automobiles were first allowed in Yellowstone National Park.

“Friends Don’t Let Friends Drive the Interstate”

The Yellowstone Highway: Denver to the Park, Past and Present, uses vintage postcards, photographs, maps, and guide book entries to recapture some of the hardships and joys of early automobile travel when “getting there was half the fun.”