Plate 4.—These verticals and ground photos illustrate the previously stated generalizations, 
then show variations from them. They progress from small scales, depicting land forms, to large 
scales showing culture, covering several pages. 
COLORADO PLATEAU 
NAVAJO SECTION SECTION D 
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tig. 1.0 High forested plateau. Tne domed area at the right 
has been drilled for oil. The soil is quite shallow and red 
sandstone is exposed on the surface in many places. The mesa 
has been selectively logged, under Forest Service supervision, 
removing about 50$ of the timber volume. It is a naturally 
open stand of pine, with many openings which are covered with 
grass,providing summer range for cattle. French Mesa near 
Gallina, New Mexico. June 1952. Scale 1:40,000 
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Fig, 1.4 Upturned sandstone strata in an uplifted area. The 
valleys between are filled with a deep accumulation of sandy 
clay weathered from these formations. The soil is fertile 
but lack of water manes productive agriculture impossible. 
The Gallina River flows only in spring and after summer storms 
and is filled with coarse alluvium. Near Llaves, New Mexico. 
June 1952. ¡scale 1:40,000 
Fig. 1.5 Log hauling following timber cutting. The uncut tim 
ber in the background still provides a forest cover and will 
grow faster as a result of this thinning. Another cut can 
then be made in i:5 years, hpads are easy to build over these 
mesas and trucks are frequently able to maneuver through the 
woods without a road. Gallina, Hew Mexico. September 1949. 
Fig. 1.6 Ranch buildings in open valley. Isolated homesteads 
of this type are common in the Navajo Section. This homestead 
could not produce enough to support a family and was abandonned. 
It is used now as a temporary camp for sheepmen. Chacon 
Ranch, Llaves, New Mexico. June 1948. 
REPORT OF COMMISSION VII GVII-87