A large part of this route traversed the wildest regions of the Continent. Along the entire course there were but four military posts and they were strung along at intervals of from two hundred and fifty to three hundred and fifty miles from each other. Over most of the journey there were only small way stations to break the awful monotony. Topographically, the trail covered nearly six hundred miles of rolling prairie, intersected here and there by streams fringed with timber. The nature of the mountainous regions, the deserts, and alkali plains as avenues of horseback travel is well understood. Throughout these areas the men and horses had to endure such risks as rocky chasms, snow slides, and treacherous streams, as well as storms of sand and snow. The worst part of the journey lay between Salt Lake City and Sacramento, where for several hundred miles the route ran through a desert, much of it a bed of alkali dust where no living creature could long survive. It was not merely these dangers of dire exposure and privation that threatened, for wherever the country permitted of human life, Indians abounded. From the Platte River valley westward, the old route sped over by the Pony Express is today substantially that of the Union Pacific and Southern Pacific Railroads. In California, the region most benefited by the express, the opening of the line was likewise awaited with the keenest anticipation. Of course there had been at the outset a few dissenting opinions, the gist of the opposing sentiment being that the Indians would make the operation of the route impossible. One newspaper went so far as to say that it was "Simply inviting slaughter upon all the foolhardy young men who had been engaged as riders". But the California spirit would not down. A vast majority of the people favored the enterprise and clamored for it; and before the express had been long in operation, all classes were united in the conviction that they could not do without it.