102 Trans. Acad. Sct. of St. Louis. 
President Harrison to explore the South Pass ‘‘in aid 
of and auxiliary to the Oregon emigration.’’ Leaving St. 
Louis, well equipped with scientific instruments and with 
Kit Carson as guide, Frémont examined the South Pass 
of the Rocky Mountains and ascended the highest peak 
of the Wind River Mountains, which is now called Fré- 
mont’s Peak. In the course of his journey he experienced 
much hardship, being frequently attacked by Indians, but 
made many contributions to our knowledge of the Rockies, 
returning with a vast amount of useful observations and 
many hundreds of specimens in botany and geology. 
In the summer of 1843 he conducted a second expedi- 
tion from St. Louis up the valley of the Platte river and 
through the South Pass, explored the Great Salt Lake, 
making important discoveries in geography. From Fort 
Vancouver he journeyed to the Sacramento river, suffer- 
ing severely from hunger and cold. Returning through 
the Great Basin and the South Pass, he finally reached 
St. Louis again late in 1844. 
In the spring of 1845 Frémont set out on his third ex- 
pedition to explore that section of the Rocky Mountains 
which gives rise to the Arkansas, the Rio Grande del 
Norte of the Gulf of Mexico, and the Rio Colorado of the 
Gulf of California; to complete the examination of the 
Great Salt Lake and its interesting region; and to ex- 
tend the survey west and southwest to the Cascade and 
Sierra Nevada Mountains. 
Frémont undertook a fourth expedition in 1848, at his 
own expense, assisted by public spirited citizens of St. 
Louis, to explore a route for a railway from St. Louis 
to California. He left St. Louis October 9, 1848, pro- 
ceeding by way of the Kansas river to the head-waters 
Frémont, J. C. Memoirs of my life. 1887. 
Greely, A. W. John Charles Frémont, the Pathfinder. Men of 
Achievement. Explorers and Travellers. 212-239. 1893. 
Dellenbaugh, F.S. Frémont and ’49. 1914. 
Sabin, E. L. Kit Carson days. (1809-1868.) 1914, 
