Along the trail, after leaving Fort Ellis, we found large quantities of the "service" berry, called by the Snake Indians "Tee-amp." Our ascent of the Belt range was somewhat irregular, leading us up several sharp acclivities, until we attained at the summit an elevation of nearly two thousand feet above the valley we had left. The scene from this point is excelled in grandeur only by extent and variety. An amphitheatre of mountains 200 miles in circumference, enclosing a valley nearly as large as the State of Rhode Island, with all its details of pinnacle, peak, dome, rock and river, is comprehended at a glance. In front of us at a distance of twenty miles, in sullen magnificence, rose the picturesque range of the Madison, with the insulated rock, Mount Washington, and the sharp pinnacle of Ward's Peak prominently in the foreground. Following the range to the right for the distance of twenty-five miles, the eye rests upon that singular depression where, formed by the confluent streams of the Madison, Jefferson and Gallatin, the mighty Missouri commences its meanderings to the Gulf. Far beyond these, in full blue outline, are defined the round knobs of the Boulder mountains, stretching away and imperceptibly commingling with the distant horizon. At the left, towering a thousand feet above the circumjacent ranges, are the glowering peaks of the Yellowstone, their summits half enveloped in clouds, or glittering with perpetual snow. At our feet, apparently within jumping distance, cleft centrally by its arrowy river, carpeted with verdure, is the magnificent valley of the Gallatin, like a rich emerald in its gorgeous mountain setting. Fascinating as was this scene we gave it but a glance, and turned our horses' heads towards the vast unknown. Descending the range to the east, we reached Trail creek, a tributary of the Yellowstone, about 3 o'clock in the afternoon, where we are now camped for the night. We are now fairly launched upon our expedition without the possibility of obtaining outside assistance in case we need it, and means for our protection have been fully considered since we camped, and our plans for guard duty throughout the trip have been arranged. Hedges is to be my comrade-in-arms in this service. He has expressed to me his great satisfaction that he is to be associated with me throughout the trip in this night guard duty, and I am especially pleased at being assigned to duty with so reliable a coadjutor as Hedges, a man who can be depended upon to neglect no duty. We two are to stand guard the first half of this first night--that is, until 1 o'clock to-morrow morning; then Washburn and Hauser take our places. Fresh Indian signs indicate that the red-skins are lurking near us, and justify the apprehensions expressed in the letter which Hauser and I received from James Stuart, that we will be attacked by the Crow Indians.[A] I am not entirely free from anxiety. Our safety will depend upon our vigilance.