Had Frémont continued up the Arkansas, he might have succeeded. On November 25 at what is now Florence, Colorado, he turned sharply south. By the time his party crossed the Sangre de Cristo Range via Mosca Pass, they had already experienced days of bitter cold, blinding snow and difficult travel. Some of the party, including the guide Wootton, had already turned back, concluding that further travel would be impossible. Benjamin Kern and Old Bill Williams were killed while retracing the expedition trail to look for gear and survivors.