On July 15, 1806, Captain William Clark and his party rode from the west, following a creek downstream, now called Billman Creek, to the Yellowstone River. Looking south, they saw the Yellowstone River emerge from between the Absaroka Mountains on the east and the Gallatin Range on the west. The Bridger Range lay to the northwest, and the Crazy Mountains to the northwest. Clark wrote that the Roche, or Yellowstone, passed out of a high rugged mountain covered with snow, with narrow bottoms and rocky rugged mountains bearing great quantities of snow. In the Absaroka Mountains, Mount Baldy overlooks Livingston, Montana, and the Yellowstone River.