since, having for its object to carry the fur trade across the Rocky Mountains, and to sweep the shores of the Pacific.
Finding that I took an interest in the subject, he expressed a regret that the true nature and extent of his enterprise and its national character and importance had never been understood, and a wish that I would undertake to give an account of it. The suggestion struck upon the chord of early associations already vibrating in my mind. It occurred to me that a work of this kind might comprise a variety of those curious details, so interesting to me, illustrative of the fur trade; of its remote and adventurous enterprises, and of the various people, and tribes, and castes, and characters, civilized and savage, affected by its operations. The journals, and letters, also, of the adventurers by sea and land employed by Mr. Astor in his comprehensive project, might throw light upon portions of our country quite out of the track of ordinary travel, and as yet but little known. I therefore felt disposed to undertake the task, provided documents of sufficient extent and minuteness could be furnished to me. All the papers relative to the enterprise were accordingly submitted to my inspection. Among them were journals and letters narrating expeditions by sea, and journeys to and fro across the Rocky Mountains by routes before untravelled, together with documents illustrative of savage and colonial life on the borders of the Pacific. With such material in hand, I undertook the work. The trouble of rummaging among business papers, and of collecting and collating facts from amidst tedious and commonplace details, was spared me by my nephew, Pierre M. Irving, who acted as my pioneer, and to whom I am greatly indebted for smoothing my path and lightening my labors.
As the journals, on which I chiefly depended, had been kept by men of business, intent upon the main object of the enterprise, and but little versed in science, or curious about matters not immediately bearing upon their interest, and as they were written often in moments of fatigue or hurry, amid the inconveniences of wild encampments, they were often meagre in their details, furnishing hints to provoke rather than narratives to satisfy inquiry. I have, therefore, availed myself occasionally of collateral lights supplied by the published journals of other travellers who have visited the scenes described: such as Messrs. Lewis and Clarke, Bradbury, Breckenridge, Long, Franchere, and Ross Cox, and make a general acknowledgment of aid received from these quarters.
