The discovery of the outcrop of the Sunbeam Lode and the organization of the Tintic Mining District on December 13, 1869, began a mining district that ultimately became world-famous. Its name honored the Ute Indian Chief Tintic, who roamed the area with his braves, and it survives as the best physical reminder of Utah's mining heritage. Towns in the district included Eureka, Silver City, Diamond, Knightsville, and Homansville. Gold, silver, lead, and copper were the region's primary minerals, and four railroad companies served the district: the Salt Lake and Western Railway, the Tintic Range Railway, the New East Tintic Railway, and the narrow gauge Eureka Hill Railway. Eureka became known as one of the quietest boom camps in the West, with stores, theaters, hotels, schools, newspapers, churches, an Andrew Carnegie library, and one of the first Golden Rule (J.C. Penney) stores. The district had a diverse ethnic mix, and its camps included people of many nationalities and religions, the famous and notorious, miners, prospectors, business proprietors, doctors, teachers, cowboys, railroad men, and women. These women rocked the cradle, nursed the sick, waited at the mouths of the mines to learn who was being brought up from below, dressed the dead, and knelt in prayer. The district is remembered through the people who settled it in hope of a better tomorrow.