98 GUIDEBOOK OF THE WESTERN UNITED STATES. 
having been shattered into large fragments by the flow movement, 
and other parts consisting of great blisters, mostly broken and show- 
ing caverns underneath. Much of the smoother surface of the lava 
is black and ropy, very similar to slag from a blast furnace. There 
is but little vegetation over its surface, and all its features indicate 
that it is a relatively very recent flow. Some of the Pueblo Indians 
of the region have a legend, handed down for several generations, of 
a river of fire in San Jose Valley, and it seems not unlikely that the 
forefathers of these people witnessed this outflow. It is said that the 
lava has flowed around the corner of an old stone wall at one point 
above McCartys, but on inspection of this wall it appears more likely 
that the wall was built into an angular jog in the margin of the sheet. 
This lava flow extends 20 miles up the valley, and except for a short 
distance near milepost 89 the railway is close to its northern edge. 
As the valley widens beyond Horace the lava sheet spreads out to the 
south, and probably it came from cones which are visible in that 
direction. 
Near milepost 90 the beds of rock in the canyon walls begin to rise 
gradually toward the west, and the Dakota sandstone and under- 
lying beds, including the massive gray sandstone seen 
near Laguna and Acoma, appear again. These rocks 
Sdepetagomaeg extend along the base of the cliffs far to the north and 
south of the railway. The rise of the beds continues 
past Horace siding for 14 miles to milepost 92, where a sandstone 
butte north of the track shows the beds dipping eastward at angles 
between 5° and 10°. 
Just north of Horace the sandstone mesa north of the track is 300 
or 400 feet high and capped by a thick sheet of older lava (basalt), 
which extends for a considerable distance east and west. This mesa 
finally bears off to the northwest as the valley widens, and a corre- 
sponding cliff extends south. Four miles west of Horace the valley 
is several miles wide and the greater part of its bottom is occupied by 
the very recent lava flow mentioned above. 
Grant is a local center for ranch and stock interests in the adjoining 
region. Just north of Grant is a lava-capped mesa which continues 
— about 5 miles west, gradually bearing off to the north. 
ae In places the edge of the lava shows columnar struc- 
Kanascity tot naites, Ure- South of the track there are good exposures of 
the recent lava sheet above referred to, showing & 
large amount of very rough surface with great broken blister cracks 
and much ropy lava. 
A few miles west of Grant the Zuni (zoon’ye) Mountains are in sight 
to the west. These mountains are the result of an extensive dome- 
shaped uplift of the earth’s crust. In its higher central part, from 
which the sedimentary rocks have been removed, the old granites and 
Horace, 
