...furrowed by the tributaries, so that ''fissures, so profound the eye cannot penetrate their gloomy depths, are separated by walls whose thickness one...almost span, and slender spires that seem tottering upon their bitses, shoot up thousands of feet from the vaults below.'' The country is impassable to...

...fnrrowed by the tributaries, so that " fissures, so profound the eye cannot penetrate their gloomy depths, are separated by walls whose thickness one...almost span, and slender spires that seem tottering upon their bases shoot up thousands of feet from the vaults below." The country is impassable to man...

...furrowed by the tributaries, so that " fissures, so profound the eye can not penetrate their gloomy depths, are separated by walls whose thickness one...almost span, and slender spires that seem tottering upon their bases, shoot up thousands of feet from the vaults below." The country is impassable to man...

...the gap—fissures, so profound that the eye cannot penetrate their depths, are separated by Avails whose thickness one can almost span, and slender spires, that seem tottering upon their base, shoot up a thousand feet from vaults below." the walls of the Grand Carton of the...

...the gap — fissures, so profound that the eye cannot penetrate their depths, are separated by wails whose thickness one can almost span, and slender spires, that seem tottering upon their base, shoot up a thousand feet from vaults below." Another striking feature of the west...

...away, leaving only isolated mountains standing in the gap; fissures, so profound that the eye can not penetrate their depths, are separated by walls whose...almost span; and slender spires, that seem tottering upon their base, shoot up a thousand feet from vaults below." In other regions, the rocks, when not...

...shreds — a mere skeleton of a country. Of such a section Lieutenant Ives, who explored the course of lower Colorado, writes : " The extent and magnitude...minutes or hours at most after a heavy shower. It is characteristic of Western North America, as of all arid countries, that the streams, away from their...

...explored the course of lower Colorado, writes : " The extent and magnitude of the system of cafions in that direction is astounding. The plateau is cut...thousand feet from vaults below." But few of these cafions contain water throughout the year. Most of them are dry at all times, excepting for a few days...