HENttY MOUNTAINS. 177 
together that they are separated only by a narrow gorge of vertical homo 
geneous sandstone. 
This latter, though homogeneous in general structure, is banded with 
red and gray, so that the walls of the amphitheaters seem painted. In 
many places these walls are broken, and the coves are separated by lines of 
monuments. Where these covers or amphitheaters are farther apart, the 
spaces above are naked, presenting a smooth but billowy pavement of sand 
stone, in the depressions of which are many water pockets, some of them 
deep, preserving a perennial supply; but the greater number So shallow 
that the water is evaporated within a few days after the infrequent showers. 
In many places, especially in the sharp angles between gulches, the 
rocks are often fissured, and huge chasms obstruct the course of the advent 
urous climber. 
These canons, and coves, and standing rocks, and buttes, and cliffs, 
and distant mountains present an ensemble of strange, grand features. 
Wierd and wonderful is the Toom'-pin Wu-near' Tu-weap'. 
GLEN CANON. 
The deepest part of Glen Canon is found in the bend to the north, 
several miles above the mouth of the Paria, where the river runs through 
the variegated beds. 
Its entire course is through rocks of Triassic Age, chiefly red sand 
stones. These rocks, beautifully exposed in the Orange Cliffs, return to 
the river down the western bank of the Dirty Devil, and we enter them 
again immediately below the mouth of that stream; and here we pass 
around the lower end of the fold which brought up the Carboniferous lime 
stones and sandstones through which Stillwater, Cataract, and Narrow 
Canons are excavated. The group of mountains discovered in coming down 
Narrow Canon is composed of eruptive rocks in part, but only in part. 
Quantities of molten matter poured out through some fissures here, and 
spread over the country before it had been eroded to its present depth; and 
this harder material, which came from the depths below, protected the sand 
stones, over which it was spread, from the 'degradation which befell the 
extension of the beds beyond the capping trachyte. The base of tlie 
23 COL 
