This influential map shows John Charles Fremont's epic journey of exploration of the American West. Fremont and his travelling companion, George Carl Preuss, launched the expedition from the frontier settlement of Westport at the juncture of the Kansas and Missouri Rivers, traveled across the Rocky Mountains at South Pass to the Columbia River in Oregon Territory, then south along the Sierra Nevada nearly to the "Pueblo del los Angeles", northeast to Lake Utah and finally east to the Arkansas River. Fremont's map and report had a profound influence on emigration to the Far West as his westward route eventually became the Oregon Trail.

References: Wheat (TMW) #497

Condition: A

Issued folded and now backed with Japanese tissue with minor tear repaired at binding side.