Open range cowboys who trailed cattle to the Hermosa railhead in the 1890s were key players in building the American beef industry. In 1919, with the opening of Custer State Park (a 72,000-acre wilderness that surpasses many national parks in natural splendor and outdoor recreation) Hermosa became something of an eastern gateway to the Black Hills. In fact, in 1927, when President Calvin Coolidge and First Lady Grace Coolidge made the park their summer retreat for three months, they traveled into Hermosa on Sunday mornings.