During the years from 1866 to 1871, inclusive, the Atchison, Topeka and Santa Fé Railway and what is now known as the Kansas Pacific, or Kansas division of the Union Pacific Railway, were constructed from the Missouri River westward across Kansas, and through the heart of the southern buffalo range. The southern herd was literally cut to pieces by railways, and every portion of its range rendered easily accessible. There had always been a market for buffalo robes at a fair price, and as soon as the railways crossed the buffalo country the slaughter began. The rush to the range was only surpassed by the rush to the gold mines of California in earlier years. The railroad builders, teamsters, fortune-seekers, "professional" hunters, trappers, guides, and every one out of a job turned out to hunt buffalo for hides and meat. The merchants who had already settled in all the little towns along the three great railways saw an opportunity to make money out of the buffalo product, and forthwith began to organize and supply hunting parties with arms, ammunition, and provisions, and send them to the range. An immense business of this kind was done by the merchants of Dodge City (Fort Dodge), Wichita, and Leavenworth, and scores of smaller towns did a corresponding amount of business in the same line. During the years 1871 to 1874 but little else was done in that country except buffalo killing. Central depots were established in the best buffalo country, from whence hunting parties operated in all directions. Buildings were erected for the curing of meat, and corrals were built in which to heap up the immense piles of buffalo skins that accumulated. At Dodge City, as late as 1878, Professor Thompson saw a lot of baled buffalo skins in a corral, the solid cubical contents of which he calculated to equal 120 cords.