July 24

1832 On July 24, 1832, Capt. B.L.E. Bonneville lead the first wagon crossing of South Pass.

1847 Pioneer Day is observed in Mormon communities to retell the story of the Great Trek to Salt Lake Valley in 1847. July 24 is the day on which pioneers first reached what would become Salt Lake City.

1873 During the summer of 1873, Captain William A. Jones led an expedition from Fort Bridger into northwestern Wyoming and the Yellowstone region. On July 24, they "marched seventeen miles to a small tributary of the Stinking Water [now Shoshone River] which I have named Mee-tee-tsee - a Shoshonee name."