Often the names of the streams crossed were indicative of their character, suggestive of adventure or descriptive of their surroundings. Thus "Sweetwater" speaks eloquently of the refreshing draughts that slaked the thirst in contrast with the alkaline waters that were bitter; Burnt River flowed past the blackened remains of an ancient forest and Bear River may have been named for the ponderous game secured by a lucky hunter. By July of 1851 the train reached Old Fort Hall, composed of a stockade and log houses, situated on the Snake River, whose flood set toward the long-sought Pacific shore. While camped about a mile from the fort the Superintendent wrote for them directions for camping places where wood and water could be obtained, extending over the whole distance from Fort Hall to the Dalles of the Columbia River. He told James Denny, brother of D. T. Denny, that if they met Indians they must on no account stop at their call, saying that the Indians of that vicinity were renegade Shoshones and horse thieves. On the morning of the fifth of July an old Indian visited the camp, but no significance was attached to the incident, and all were soon moving quietly along in sight of the Snake River; the road lay on the south side of the river, which is there about two hundred yards wide. An encampment of Indians was observed, on the north side of the river, as they wound along by the American Falls, but no premonition of danger was felt, on the contrary, they were absorbed in the contemplation of the falls and basin below. Dark objects were seen to be moving on the surface of the wide pool and all supposed them to be ducks disporting themselves after the manner of harmless water fowl generally. What was their astonishment to behold them swiftly and simultaneously approach the river bank, spring out of the water and reveal themselves full grown savages!