Chapter VI: HABITAT
THE NAVAHO RESERVATION From the Chama River region, where the
Spanish first encountered them in the early seventeenth century, the
Navaho spread during the next two centuries over the Chaco area, then
westward over the mountains into the great Canyons de Chelly and del
Muerto. They were ranging far beyond this region in 1863 when they
became prisoners of war at Fort Sumner.
The treaty of 1868, which ended their captivity, specified the
boundaries of the reservation as follows: the northern edge 37 degrees
of north latitude (the present Arizona-Utah, Colorado-New Mexico
boundaries); on the south by an east-west line passing through the site
of old Fort Defiance; on the east by a meridian passing through Bear
Spring; west by meridian of longitude 109 degrees 30 minutes (just west
of Canyons de Chelly and del Muerto)--an area which constituted somewhat
over three million acres. Just as in the case of a census of the
population, the acreage occupied by the Navaho, on or off the
reservation, has never been definitely known; figures represent merely
the estimated or approximate average.
Ten years after the treaty, the increase in the number of Navaho and
of their flocks resulted in a grant of additional land. Since then the
population has increased five times that of 1868, and the reservation
has been increased to about fifteen million acres. The odd-numbered
sections of this acreage belong to the Santa Fe Railroad or to private
interests. Off the reservation, the Navaho occupy about 2,304,000 acres
in addition to the lands they use which belong to the Hopi reserve.
Formerly the constant plea of the Navaho for just "one more little
piece of land" could be answered by extending the reservation; these
pleas can no longer be answered so easily. Now the Navaho have been
cooperating with governmental agencies to alleviate the sorry conditions
and to improve the present reservation. During the last few years
thousands of worthless horses, and excess rams and goats have been
slaughtered; the number of sheep has also been reduced. The purpose is
to improve the quality of the livestock kept on the reservation and to
keep the number within the limits of the carrying capacity of the
ranges. Windmills, dams, artesian wells, and other means of developing a
water supply have been established where practical. It is hoped that
eventually sufficient water can be developed to enable the Navaho to
become more dependent on agriculture.
THE LAND QUESTION One fifth of the total area is useless
because of its rugged character, and the rest of the land is of unequal
quality. The water shortage, the inequality in the value of the land,
the necessity for summer and winter pastures, the need for more land for
the enormous flocks, and conflicts with white stockmen, have kept the
tribe in constant agitation for the protection of their lands,
additional allotments, and the development of water resources.
Erosion is one of the most troublesome aspects of the land
question--natural forces of heat, cold, drought, and floods are
constantly at work, decreasing the quality of the land and washing away
the soil. These natural forces have been aggravated by overgrazing and
mismanaged grazing. Formerly there were a few large herds which could be
transferred to other pastures, leaving the land to regain its natural
coverage; now there are numerous small herds and fewer opportunities for
moving to new ranges.
The land question on the reservation is not one which affects the
Navaho Indians alone. The reservation "occupies a crucial position in
the Southwest region, containing within it the potentiality of
considerable damage to the watersheds of the San Juan, Little Colorado,
and Colorado Rivers in general and Boulder Dam in particular" (Survey of
Conditions, 1937:Part 34:17931). Engineers have reported that within a
few years Boulder Dam will be filled with sediment from the Navaho
country unless soil erosion is checked in the entire area drained by the
Colorado River (ibid., 17986). One report (ibid., 17614) states: "On old
Geological Survey maps (of the Navaho country) are found records of
lakes now completely dry, due to siltation or drainage through gully
cutting. Streams once perennial and known to have contained beaver now
are alternately dry and rushing with silt-detritus-laden torrents.
Untold quantities of rain water that formerly soaked into the earth,
part of it to enter into the underground water supplies, now--loaded
with millions of tons of silt--rush to the Colorado River, with the
result that artesian-water supplies are tending to fail and moisture
necessary for growing of range grasses has been reduced. Thus the desert
area has been increased, for in effect the utility of rainfall has
become less, since less of it goes into the soil to become available for
plant growth and underground water supplies.
"The water not only left the land, never to return, but also left
destruction in its path. Alluvial valley bottoms once covered with dense
strands of grass now became completely denuded. Greatly increased, and
frequently torrential, flows of water now concentrated as gushing
streams of great cutting power in the centers of these alluvial valleys
and cut out great washes. From these washes long fingering gullies
worked out toward the edge of the alluvial fill, with the result that in
certain instances almost the entire valley fill has been removed to
bedrock. As a part of this erosive process, not only were the grasslands
devastated but also large areas formerly cultivable by floodwater
irrigation were either destroyed or made in accessible to such water
through its concentration in gully bottoms and rapid runoff and loss
from such areas."
For further information on this subject, consult "Survey of
Conditions of the Indians in the U. S.," Pt. 18 (especially p. 9121 ff.,
the report of Forester W. H. Zeh), Part 22 (Indian Grazing), and Part
34; Weber, 1914 (also included in Survey of Conditions, Pt. 34); FM
Annual, 1922.
GEOGRAPHY The following notes are based largely on Gregory's
"Geology of the Navaho country," 1917, the standard source on the
subject. It has maps and fine photographs of the landscape.
"The Navaho country is part of the Colorado Plateau province, a
region of folded and faulted sedimentary rocks, traversed by innumerable
canyons. Parts of the area are so intricately dissected by interlaced
gorges that the original surface of the plateau appears to have been
destroyed and is now represented by a bewildering array of scattered
mesas, buttes, isolated ridges, and towering spires, among which
dwindling streams follow their tortuous paths" (p. 11). In elevation the
country varies from 4,500 to 8,000 and 10,000 feet; about half is more
than 6,000 feet above the sea. Navaho Mountain, the highest point, rises
to 10,416 feet.
Cross-bedded sandstone predominates, but there are some limestone
and conglomerate. Although the soil is fertile, it is so porous that
water immediately sinks into the ground, and in some places planting of
corn ten or twelve inches deep taps this water. Erosion has been, and
still is, of great significance in shaping the landscape into its
characteristic elements of mesa, butte, canyon, and wash. Rainbow Bridge
is a famous example of the work of erosion. In Monument Valley, east of
Rainbow Plateau, fantastic forms eroded from sandstone are in brilliant
contrast to the dark spires of volcanic necks. The Chinle formation,
named after the valley where it is prominent, supplies much of the
beautiful coloring characteristic of the western part of the
reservation, especially the Painted Desert.
MOUNTAINS A chain of mountains, the Lukachukai-Tunitcha-Chuska
range, rises above the arid desert plateau and cuts across the Arizona
and New Mexico boundary in a northwest to southeast direction. Beyond
the Lukachukai Mountains to the north, is a cluster known as Carrizo
Mountains, where prospectors continue to search in vain for gold. No
minerals of any value have been reported from the reservation, but some
oil and deposits of bituminous coal have been discovered. Funds from the
sale or lease of oil lands go into the tribal fund for reservation
improvement, and coal is mined for use in the hospitals and schools. The
Navaho did not mine in aboriginal times.
The mountain range separates the eastern and western sections of the
reservation, which differ in culture, physique of the natives, and
geography. The eastern has been much influenced by contact with white
people from earliest times, while Navaho on the west side of the
mountains still cling to the old customs. The district from Keam's
Canyon to the Little Colorado River, particularly, has kept the old
culture though influenced by Hopi customs. It is said that there are
Indians around Black Mountain, northwest of Keam's Canyon, who have
never seen a white man (Reichard, 1928:2).
The east side of the mountain range falls sharply to a barren desert
where wood and water are scarce. Streams are rare on the east slope; and
Chaco Wash, the principal drainage channel, is dry most of the year,
though in some places the underflow can be reached by digging.
The western side of the range is well watered by streams which rise
near the top of the mountains, and the landscape over which they flow
changes gradually to a tableland or mesa. The streams drain into ravines
and flat-bottomed canyons, such as de Chelly and del Muerto, which are
almost perpendicular to the mountains and Chinle Valley receives some of
the water. Because of the streams the western region is more thickly
populated than the eastern. There are numerous small farms in the canyon
region which raise fine crops of peaches, alfalfa, maize, and
vegetables.
The Lukachukai-Tunitcha-Chuska range becomes a beautiful flowery
parkland with abundant grass and water in the summertime, and then the
Navaho drive their flocks to the mountains in search of fresh
pastures.
The forested area of the reservation consists of about three million
acres of pinyon-juniper growth and three hundred thousand acres of saw
timber, such as yellow pine, spruce, and fir. Besides these major
varieties, there are about two hundred thousand acres of other growth
such as aspen, alder, cottonwood, box elder, and scrub oak.
CLIMATE "The keynote of the climate of the Navaho country is
variability, marked by sudden changes in temperature and wide
fluctuations in rainfall. An intensely hot summer day may be followed by
a chilly night; sunlight is synonymous with heat, shade with cold. The
high temperature of the forenoon may be lowered by a cold rain or by a
hailstorm, only to become reestablished within an hour. When storms come
the country is flooded; at other times the task of finding water for man
and beast taxes the skill of the most experienced explorer" (Gregory,
1917:13-14). "Within the reservation topography is of primary importance
in determining the climate. At stations in the Little Colorado and San
Juan Valleys the weather is warmer and drier than at higher altitudes
near the center of the area.... The floor of a canyon may have a climate
quite unlike that of the canyon rim, and the cliff dwellers long ago
learned that one canyon wall may afford favorable sites for settlement
that are not to be found on the opposite wall" (ibid., p. 13).
There is much seepage of water from the rocks, and springs abound in
the cliffs. In such places, on the sunny side of the wall, away from the
prevailing southwest wind and not far from the water and fuel supply,
the Navaho build their hogans.
RAINFALL The averages of the annual mean rainfall and
temperature, as recorded at the meteorological stations, vary
considerably at different altitudes and from year to year. The annual
mean precipitation is about 8.29 inches. Thirty-seven per cent of the
rain comes in July, August, and September. The storms are short and
violent, with thunder and lightning which cause forest fires and do much
damage to the flocks and to the soil. The winters are severe: snow may
fall even in the Painted Desert. The reservation streams are dry most of
the year, but during the rainy seasons floods may raise them as high as
from five to ten inches within a short time. Most of the drainage is
into the turbulent San Juan River, called by the Navaho the "Water of
Old Age" because its foaming whiteness suggests the hair of an old
person.
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