Pike was now lost in the maze of snow-covered mountains under most adverse circumstances, as he recites: "Eight hundred miles from the frontiers of our country; not one person clothed for the winter, many without blankets, having been obliged to cut them up for socks, etc.; laying down at night on the snow or wet ground, one side burning, while the other was pierced with cold; endeavoring to make of raw buffalo-hide a miserable substitute for shoes;" the men falling sick, and, finally, the country so broken and precipitous, that even the Indian horse could not carry a pack, and three animals were lost from falls and bruises. Pike was disconsolate, but not discouraged. He sent ahead the interpreter and two soldiers travelling light to find a way out, while, making five small sleds to carry the baggage and be dragged by the men, he followed. Struggling on, nearly perishing from cold, and almost famished for food, the 5th of January found Pike, greatly to his mortification, in the same old valley of the Arkansas, in sight of his camp of December 10th. Realizing that he could expect nothing further from his few worn-out horses, and burning with mortification at his egregious error in considering the Arkansas as the Red, Pike decided to try on foot that journey which had failed on horseback. He at once strengthened the small fort, left therein heavy baggage, horses, etc., with the interpreter and one man, while with the rest he started to cross the mountains with packs in search of the Red River, where he intended to send back a party to guide the pack-train to it. This in the belief that the Red River had its sources to the southwest, instead of in its true location hundreds of weary miles to the southeast. Humboldt's map of New Spain, compiled from data in the City of Mexico in 1804, plainly indicates that the Spanish labored under the same error as Pike, they also thinking the sources of the Red River to be some two or three hundred miles northwest of their true position. This map shows that although the main Red was well known, yet the head-waters of the Canadian were believed to be, and were charted as, the northwest extension of the Red to within fifty miles of the place where Pike was later arrested. It may be added, as showing the extent of geographical knowledge in New Spain at that time, that the upper Arkansas was known under the name Rio Napestle, although its connection with the lower Arkansas was only suspected. The Pecos, Colorado, Trinity, and Sabine Rivers were also known, but the Llano Estacado, of Texas, and the plains of Colorado, Indian Territory, and Kansas, though they had been crossed here and there prior to 1805, were practically unknown lands, given over to the buffalo and savages, who were popularly and correctly associated with them.