In going to the summit we traveled several hundred feet on a rocky ridge not wide enough for safe travel by a man on horseback. At an elevation of about eight hundred feet above Yellowstone lake we found two small lakes nestled in a deep recess in the mountain and surrounded by the overturned rocks. Our route to-day has been entirely through fallen timber, and it has been a hard day of travel on our horses, necessitating jumping over logs and dead branches of trees, and thus we have made very slow progress. The map of Yellowstone lake which we will be enabled to complete from the observations made to-day will show that its shape is very different from that shown on Captain Raynolds' map. The lake has but three islands. We are more than ever anxious about Mr. Everts. We had hoped, this morning, to make our camp to-night on the southwest arm of the lake, but the fallen timber has delayed us in our travel and prevented our doing so. The southwest arm of the lake has been our objective point for the past three days, and we feel assured that Mr. Everts, finding himself lost, will press on for that point, and, as he will not be hindered by the care of a pack train, he can travel twice as far in one day as we can, and we are therefore the more anxious to reach our destination. We have carefully considered all the points in the case, and have unanimously decided that it will be utter folly to remain in camp here, and equally so to have remained in this morning's camp, hoping that he would overtake us. On the evening that Mr. Hedges was lost, Mr. Everts told him that he ought to have struck out for the lake, as he (Everts) would do if lost. So we will move on to the southwest arm of the lake and remain three or four days. If Mr. Everts overtakes us at all he will do so by that time. [Illustration: Truman C. Everts] Sunday, September 11.--Gillette and Trumbull returned to camp this morning, having traversed the shore of the lake to a point east of our camp of September 9th, without discovering any sign of Mr. Everts. We have arrived at the conclusion that he has either struck out for the lake on the west, or followed down the stream which we crossed the day he was lost, or that he is possibly following us. The latter, however, is not very probable.