This collection of mailable vintage-photograph postcards showcases the timeless and beloved history of Rollins Pass. First known as Boulder Pass, this comparatively low saddle on the Continental Divide in Colorado has been in continuous use for millennia. First utilized as an expansive Native American game drive complex, the pass subsequently functioned as a toll wagon road in the 1860s. At the turn of the 20th century, Rollins Pass became the highest standard-gauge adhesion railroad grade in North America–an achievement still standing today. However, this overmountain route, known as Corona Pass, was inefficient and dangerous: resolute men tasked with the impossible faced high elevations with even higher risks of injury or death. A safer, permanent route came in 1928 by way of the Moffat Tunnel. The rails of Rollins Pass were then removed, freeing the automobile to tour the historic road. No matter the epoch, the legacy of Rollins Pass abides: a preeminently scenic route to the top of the world.