Dividing his party Frémont crossed the Utah desert between the thirty-eighth and thirty-ninth parallels, while his subordinate, Walker, explored the valley and sink of the Humboldt. Rendezvousing at Lake Walker and again separating, Frémont reached Sutter’s Fort through the American River route, while Walker and the main party crossed the Sierras into the extreme southern part of the San Joaquin Valley, opposite Tulare Lake. Of the survey and explorations made by the expedition it may be briefly said that they added very greatly to a knowledge of Upper California, and resulted in the publication in 1848 of the most accurate map of that region extant.
There was, however, another and more important phase to the third expedition than that of mere exploration. Frémont before leaving Washington was informed that war with Mexico was possible, and received general unwritten instructions looking to such a contingency. The forecast of trouble proved correct, and the preliminary and extensive disturbances in California interfered most materially with the progress of his surveys. Frémont’s explorations westward of the Arkansas River had been through and over Mexican territory. In order to place himself in proper position as a non-invader he proceeded to Monterey, Cal., at the earliest practicable moment and applied to the commanding general, Don José Castro, for permission to extend, in the interests of science and commerce, the geographical survey of the nearest route between the United States and the Pacific Ocean. The request was granted promptly and courteously. Scarcely had Frémont commenced his survey in Northern California than he was peremptorily ordered by General Castro, who later appears to have been acting under orders from the Mexican Government, to quit the department; the message being coupled with an intimation that non-compliance would result in expulsion by an armed force. The message was delivered in such manner and language as incensed Frémont and caused him to peremptorily refuse. Withdrawing a short distance he erected a stockade and awaited expulsion by arms. The Mexican force made several forward movements, but carefully avoided an attack. Frémont finally judged it advisable to quit Mexican territory, as his remaining might be detrimental to the United States. He consequently withdrew slowly toward Oregon, surveying and exploring as he moved northward.
On May 7, 1845, Frémont was overtaken in the valley of the upper Sacramento by Lieutenant Archibald H. Gillespie, of the marine corps, who brought from Washington important despatches which were destined to settle the fate of California as a Mexican state. Frémont was informed through Gillespie that war with Mexico had been declared, that the government counted upon him to ascertain and conciliate the disposition of the people of California toward the United States, and especially to conserve American interests by ascertaining and counteracting any scheme looking to the cession of California to Great Britain. Frémont was then surrounded by hostile Klamaths, who killed several of his party and with whom he had several engagements, which resulted in the destruction of the principal village, fishing appliances, etc., of the offending tribe.
Frémont, turning promptly southward, his heart set on the important mission intrusted to him, saved from ravage the American settlements in the valley of the Sacramento, which were in imminent danger of destruction between the proclamation of the Mexican authorities ordering confiscation and expulsion and the threatening attitude of the Indian allies, incited by unscrupulous officials to activity. Aided by volunteers from the American settlers Frémont freed California permanently from Mexican domination, his actions receiving mention and approval from the President in his Annual Message to Congress, in December, 1846.
Commodore Stockton, United States Navy, charged with the control of affairs on the Pacific Coast, appointed Frémont Governor and military commander of California. When controversies arose between Commodore Stockton, of the navy, and General Kearney, of the army, each having authority from Washington to conquer California and organize its government, Frémont adhered to Stockton, his first commander. In consequence serious complications arose, which finally resulted in the trial of Frémont, and, although the findings of the court were partly disapproved and the sentence remitted, he resigned from the army.
His courage, persistency, and success in these expeditions gained for Frémont world-wide reputation. At home he was named The Pathfinder; abroad he received the Founders’ Medal from the Royal Geographical Society of England and many other well-deserved marks of appreciation from geographers.
Devoted to California and to its exploration Frémont immediately fitted out, at his own expense, another expedition, the fourth. In October, 1848, with thirty-three men and a large train he crossed the Rocky Mountains, undeterred by his fearful experiences in 1844, and again attempted the passage of the snow-covered Sierras in mid-winter. The snow was deep, the guide inefficient, and the winter unusually cold. One-third of his men and all his animals perished after suffering cold, hunger, and fatigue of the most appalling character, and the remnant of the expedition returned to Santa Fé. Unappalled by this overwhelming disaster Frémont reorganized at Santa Fé a new party, and after a long, perilous journey reached Sacramento in the spring of 1849.
Frémont’s experiences during his surveys of the great valleys of the San Joaquin and Sacramento caused him to fall under the fascinating spell which California exercises over the greater number of its Eastern settlers. The vast domain of its virgin forests, the luxuriance of its vegetation, the extent and fertility of its valley lands, and its incomparable climate were speedily recognized by Frémont as so many physical conditions calculated to insure unparalleled prosperity when once it should be occupied by Americans. He saw this vast region practically a waste; its magnificent harbors unvexed, unbroken by the keels of commerce; its unrivalled valleys awaiting the hand of intelligent labor to transform them from mere pastures for scattered herds of cattle into fruitful granaries, orchards, and vineyards capable of feeding a continent. Imbued with these ideas he cast in his lot with California, and was a potent power in making it a free State, and was honored by election as its first Senator, unfortunately, however, drawing the short term in the United States Senate.
Failing, through the defeat of his party, of re-election, Frémont visited Europe for a brief and well-earned rest, which was broken by the authorization of Congress for a survey of a trans-continental railway, which awoke his dormant exploring spirit. Returning promptly to the United States he organized an expedition under private auspices, which started westward in September, 1853. He travelled by the central route through the mountains of Colorado, passing over the Sierra Blanca, through the Sandy Hill Pass and the valley of the Grand River. Turning southward into Utah and crossing the Sawatch Mountains, Frémont’s march brought him to the Sierra Nevada near the end of winter, and their passage was attempted near the thirty-seventh parallel. Thereof he writes: “I was prepared to find the Sierra here broad, rugged, and blocked with snow, and was not disappointed in my expectations.” The snow being impassable and food failing he made a detour of some seventy miles to the southward and reached the Kern River Valley through Walker Pass. The march entailed endless suffering and extreme privations on the party, which was pushed to the direst extremities to preserve life. They were often without food of any kind for an entire day and for many weeks had only the flesh of their emaciated and exhausted horses. The disastrous outcome of this expedition impaired Frémont’s reputation, it appearing, then as now, surprising that, aware by bitter experience of the impracticability of such a journey, he should have so timed his march as to be again overwhelmed by the dreadful winter snow of the Nevada range.
This sketch has in view the treatment neither of Frémont’s career as a soldier nor as a politician, which phases of his life, viewed by ordinary circumstances, may be considered as unsuccessful. It need not be here dwelt on that his name became a watchword of the ever-growing spirit of human freedom, and that as the standard-bearer of an idea he astonished the country and the world by obtaining the suffrages of nearly one and a half millions of his countrymen for the highest office in the gift of the people. His unwavering, if impractical, devotion to freedom was forcibly illustrated by his emancipation proclamation in Missouri, which he declined to recall, even at the request of the President who revoked it.