THE SANTA FE ROUTE. 99 
Schists appear, constituting a group of high summits of considerable 
prominence. One of these, Mount Sedgwick, has an altitude of 9,200 
feet. The Zuni Mountains extend westward along the south side of 
the San Jose Valley and across the Continental Divide nearly to 
Gallup, the railway deflecting its course somewhat to the northwest 
to pass around their foothills. Many features of the limestone ridge 
on the northeast slope of this uplift are visible between Grant and 
Bluewater stations, including some deep canyons rimmed with high 
cliffs of the white limestone and sandstone of later Carboniferous age. 
The northeastward dip is plainly perceptible, and the rough, craggy 
ridges of granite of the interior of the uplift may be discerned, culmi- 
nating in Mount Sedgwick. 
Northeast of the railway a wide valley extends to the foot of low 
cliffs of red sandstones and gray sandstones (Dakota), with formations 
of later Cretaceous age farther back. From a point near Bluewater 
station there are fine views of the west side of Mount Taylor to the 
east, showing the high lava-capped plateau on which this mountain 
stands. 
South of Bluewater i is a Mormon settlement using water from Blue- 
water Canyon to irrigate fruits, alfalfa, and vegetables. Three miles 
north by east af Bluewater station there rises on the 
 Renewhter. valley slope a round black cone of moderate elevation, 
8 ema 6,634 feet. known as El Tintero (tin-tay’ro, Spanish for ink pot), 
opula 237.* 
Kansas City 1,028 miles. from the deep hole or crater in its top. It isshown 
in Plate XVI, B (p. 100). The lava flow flooring San 
Jose Valley at Horace and Grant extends to this cone, which perhaps 
marks a source of the outflow. El Tintero is plainly in view to the 
north of the track for several miles, or nearly to milepost 110, where 
the lava ceases and is succeeded by red and gray shale of Triassic age. 
The shale represents some. of the red shales and sandstones which 
overlie the massive sandstone of the midde of the red beds in the 
Glorieta region, between Las Vegas and Lamy. 
A short distance southeast of the railway low knobs mark the out- 
crop of sandstone (Shinarump?) underlying this shale, and a short 
distance farther south still lower limestones, of Carboniferous age, 
rise gradually on the northeast slope of the Zuni uplift. 
From milepost 110 to the Continental Divide at Gonzales and 
thence down the west slope for 20 miles farther the railway is built 
through a broad valley underlain by the soft red and gray shale above 
mentioned. This valley extends northward for 2 or 3 miles to the 
foot of walls of bright-red sandstones (Wingate), mostly 300 to 400 
feet high, capped by lighter-colored sandstones (the Zuni and Dakota) 
which rise as great steps to a ridge of considerable prominence ex- 
tending continuously across the Continental Divide. This red wall 
is recessed by numerous small canyons, and some of the intervening © 
