I've always enjoyed Ruxton's writings, here is a snippet taken from his book WILD LIFE IN THE ROCKY MOUNTAINS.
Trappers are of two kinds, the "hired hand" and the "free trapper:" the former hired for the hunt by the fur companies; the latter, supplied with animals and traps by the company, is paid a certain price for his furs and peltries.
There is also the trapper "on his own hook;" but this class is very small. He has his own animals and traps, hunts where he chooses, and sells his peltries to whom he pleases.
On starting for a hunt, the trapper fits himself out with the necessary equipment, either from the Indian trading-forts, or from some of the petty traders -- coureurs des bois -- who frequent the western country. This equipment consists usually of two or three horses or mules - one for saddle, the others for packs - and six traps, which are carried in a bag of leather called a trap-sack. Ammunition, a few pounds of tobacco, dressed deer-skins for moccasins, &c., are carried in a wallet of dressed buffalo-skin called a possible-sack. His "possibles" and "trap-sack" are generally carried on the saddle-mule when hunting, the others being packed with the furs. The costume of the trapper is a hunting-shirt of dressed buckskin, ornamented with long fringes; pantaloons of the same material, and decorated with porcupine-quills and long fringes down the outside of the leg, a flexible felt hat and moccasins clothe his extremities. Over his left shoulder and under his right arm hang his powder-horn and bullet-pouch, in which he carries his balls, flint and steel, and odds and ends of all kinds. Round the waist is a belt, in which is stuck a large butcher-knife in a sheath of buffalo-hide, made fast to the belt by a chain or guard of steel; which also supports a little buckskin case containing a whetstone. A tomahawk is also often added; and, of course, a long heavy rifle is part and parcel of his equipment. I had nearly forgotten the pipe-holder, which hangs round his neck, and is generally a gage d'amour, and a triumph of squaw workmanship, in shape of a heart, garnished with beads and porcupine-quills. Thus provided, and having determined the locality of his trapping-ground, he starts to the mountains, sometimes alone, sometimes with three or four in company, as soon as the breaking up of the ice allows him to commence operations. Arrived on his hunting-grounds, he follows the creeks and streams, keeping a sharp look-out for "sign." If he sees a prostrate cottonwood tree, he examines it to discover if it be the work of beaver-whether "thrown" for the purpose of food, or to dam the stream. The track of the beaver on the mud or sand under the bank is also examined; and if the "sign" be fresh, he sets his trap in the run of the animal, hiding it under water, and attaching it by a stout chain to a picket driven in the bank, or to a bush or tree. A "float-stick" is made fast to the trap by a cord a few feet long, which, if the animal carry away the trap, floats on the water and points out its position. The trap is baited with the "medicine," an oily substance obtained from a gland in the scrotum of the beaver, but distinct from the testes. A stick is dipped into this and planted over the trap; and the beaver, attracted by the smell, and wishing a close inspection, very foolishly, puts his leg into the trap, and is a "gone beaver."
When a lodge is discovered, the trap is set at the edge of the dam, at the point where the animal passes from deep to shoal water, and always under water. Early in the morning the hunter mounts his mule and examines the traps. The captured animals are skinned, and the tails, which are a great dainty, carefully packed into camp. The skin is then stretched over a hoop or framework of osier-twigs, and is allowed to dry, the flesh and fatty substance being carefully scraped (grained). When dry, it is folded into a square sheet, the fur turned inwards, and the bundle, containing about ten to twenty skins, tightly pressed and corded, and is ready for transportation.
During the hunt, regardless of Indian vicinity, the fearless trapper wanders far and near in search of "sign." His nerves must ever be in a state of tension, and his mind ever present at his call. His eagle eye sweeps round the country, and in an instant detects any foreign appearance. A turned leaf, a blade of grass pressed down, the uneasiness of the wild animals, the flight of birds, are all paragraphs to him written in nature's legible hand and plainest language. All the wits of the subtle savage are called into play to gain an advantage over the wily woodsman; but with the natural instinct of primitive man, the white hunter has the advantages of a civilized mind, and, thus provided, seldom fails to outwit, under equal advantages, the cunning savage.
Sometimes, following on his trail, the Indian watches him set his traps on a shrub-belted stream, and, passing up the bed, like Bruce of Old, so that he may leave no track, he lies in wait in the bushes until the hunter comes to examine his carefully-set traps. Then, waiting until he approaches his ambushment within a few feet, whiz flies the home-drawn arrow, never failing at such close quarters to bring the victim to the ground. For one white scalp, however, that dangles in the smoke of an Indian's lodge, a dozen red ones, at the end of the hunt, ornament the camp-fires of the rendezvous.