170 years ago today - Jul 17, 1847

William Clayton writes on the pioneer trail: " In the afternoon Elders [Heber] Kimball, [Willard] Richards, [Ezra T.] Benson and others went onto a mountain to clothe and pray for President Young who continues very sick. On returning they rolled down many large rocks from the top of the mountain to witness the velocity of their descent &c. Some would roll over half a mile and frequently broke to pieces."