About nine o'clock, some Indians, a few only (as usual), were seen on the bluffs. Brevet General Carrington, Colonel of the 18th United States Infantry, in command of the post, sent out eighty-one men, one company of infantry, and one of 2d Cavalry, Company C, under command of Colonel Fetterman. The instructions, it is said, were not to go over the hills. However that may be, they pursued the hostile Indians beyond sight of the post, crossing the river near the fort to do so. At ten o'clock the fight began, the firing being heard plainly at the post. There were from fifteen hundred to twenty-five hundred Sioux, under chief Red Leaf. The soldiers were led into an ambuscade, and having shot away all their ammunition in a panic, were surrounded and massacred before two o'clock in the afternoon. Sixteen Indians were killed, and chief Spider among them. The bodies of the soldiers were horribly mutilated and scalped. Why reinforcements were not sent out to help them out of their perilous condition does not appear. Colonel Fetterman was killed, a noble, brave man, and the fort next above "Laramie" was named after him. This is an eyesore to Red Cloud, and he requested the President to have it removed, as of no use, he said, and costing the government a great deal of money. His wish was not gratified. MAUVAISES TERRES, OR BAD LANDS, DAKOTA. Up in the Indian country, in Dakota, near White River, as one travels over a prairie country, one comes suddenly upon a valley, down between one and two hundred feet, which is at least thirty miles wide, by ninety in length. It looks as though it had sunk down below all the country round; while standing like sentinels all around, one sees pillars of immense height, of irregular prismatic columns of masses of stone, stretching up to the height of from one to two hundred feet or more. It reminds one of the ruins of Pompeii (described by Bulwer) as the traveler wends his way through deep passages, amidst petrified snakes, turtles, and mammoth animals, which must have been larger than elephants. Turtles weighing a thousand pounds, petrified, lie around, and all over is strewn the remains of extinct animals in this vast charnel-house.