are clustered numerous springs of various sizes and temperatures.  One of them, of scalding heat, boils furiously and incessantly, rising to the height of two or three feet.  In another place, there is an aperture in the earth, from which rushes a column of steam that forms a perpetual cloud.  The ground for some distance around sounds hollow, and startles the solitary trapper, as he hears the tramp of his horse giving the sound of a muffled drum.  He pictures to himself a mysterious gulf below, a place of hidden fires, and gazes round him with awe and uneasiness.

The most noted curiosity, however, of this singular region, is the Beer Spring, of which trappers give wonderful accounts.  They are said to turn aside from their route through the country to drink of its waters, with as much eagerness as the Arab seeks some famous well of the desert.  Captain Bonneville describes it as having the taste of beer.  His men drank it with avidity, and in copious draughts.  It did not appear to him to possess any medicinal properties, or to produce any peculiar effects.  The Indians, however, refuse to taste it, and endeavor to persuade the white men from doing so.

We have heard this also called the Soda Spring, and described as containing iron and sulphur.  It probably possesses some of the properties of the Ballston water.

The time had now arrived for Captain Bonneville to go in quest of the party of free trappers, detached in the beginning of July, under the command of Mr. Hodgkiss, to trap upon the head waters of Salmon River.  His intention was to unite them with the party with which he was at present travelling, that all might go into quarters together for the winter.  Accordingly, on the 11th of November, he took a temporary leave of his band, appointing a rendezvous on Snake River, and, accompanied by three men, set out upon his journey.  His route lay across the plain of the Portneuf, a tributary stream of Snake River, called after an unfortunate Canadian trapper murdered by the Indians.  The whole country through which he passed bore evidence of volcanic convulsions and conflagrations in the olden time.  Great masses of lava lay scattered about in every direction; the crags and cliffs had apparently been under the action of fire; the rocks in some places seemed to have been in a state of fusion; the plain was rent and split with deep chasms and gullies, some of which were partly filled with lava.

They had not proceeded far, however, before they saw a party of horsemen, galloping full tilt toward them.  They instantly turned, and made full speed for the covert of a woody stream, to fortify themselves among the trees.  The Indians came to a halt, and one of them came forward alone.  He reached Captain Bonneville and his men just as they were dismounting and about to post themselves.  A few words dispelled all uneasiness.  It was a party of twenty-five Bannack Indians, friendly to the whites, and they proposed, through their envoy, that both parties should encamp together, and hunt the buffalo, of which they had discovered several large herds hard by.  Captain Bonneville cheerfully assented to their proposition, being curious to see their manner of hunting.