TIMBER—WATER—FORAGE

Timber Resources.—The actual forested areas within the Shoshone extend

in altitudinal range from about 6,000 to 10,000 feet above sea level.

Below the lower limits of the typical forest areas is a scattering tree

growth of aspen and cottonwoods, restricted principally to the stream

courses.

It is estimated that approximately 48 percent of the net area of the

forest is covered with timber, and supports a stand of some 2¼ billion

board feet. Lodgepole pine, Douglas fir, and Engelmann spruce are the

principal timber species; alpine fir, Rocky Mountain red cedar, and

several minor broadleaved species also occur.

Mature timber may be purchased, and when sales are made the cut is so

regulated that a perpetual supply of timber will be available without

destroying the forest cover. There are more than 20 different timber

operations within the forest which provide lumber, posts, poles, and

other timber products for the communities and residents of the Big Horn

Basin and adjacent territory, and provide a living for approximately 100

families. These operations also supply such special products as railroad

ties and mine timbers and props. Hundreds of ranchers and farmers obtain

directly such material as corral poles, fence posts, and fuel from the

forest.

Water Resources.—The vast coniferous forests of the Shoshone are

important as a ground cover in regulating the flow of streams having

their headwaters inside its boundaries. By retarding the run-off from

melting snows and rains, the forests help to prevent erosion and floods

in the spring and conserve the flow of water through the summer when it

can be used for irrigation. The development of agriculture and, in fact,

the future growth of Wyoming and other Western States are absolutely

dependent upon irrigation water. Two large irrigation projects, the

Shoshone and Sunshine, are dependent upon the forest watersheds, as are

many cooperative and individual users. Without doubt the greatest social

and economic contribution of the forest to those living within and

adjacent to it, and the State at large, is water for irrigation and

domestic use.

The Shoshone project waters 73,000 acres, on which agricultural crops

having a value of approximately $2,000,000 are raised annually. With the

completion of the Hart Mountain Division of this project, the area under

water will be increased by approximately 41,000 acres. Local enterprise

in the form of cooperative and individual projects has brought under

irrigation more than 60,000 acres additional. The Sunshine project

provides supplemental water for a part of the land included in the last

figure given. If the Shoshone project is developed to capacity, it is

estimated that approximately 163,000 acres of land will be under water.

There are over a million acres of arid lands in the plains of the Big

Horn and Yellowstone Basins, with favorable soils and potential farm

values if water can be made available for irrigation. It is important to

conserve the forest and forage cover so that the greatest volume of

usable water may be available for agricultural use. The future

prosperity and agricultural development of the region is limited to a

great extent by the amount of water that can be supplied for irrigation

from the streams having their sources within the Shoshone Forest.

Grazing Resources.—The raising of livestock is a basic industry in

Wyoming. The Shoshone provides summer range for 10,000 cattle and

horses, and 75,000 sheep, owned by almost 200 resident owners. The

higher ranges are particularly good for the production of lambs and

wool, and the lower ones are excellent for beef. Range is also furnished

for horse herds of the dude ranchers and for dairy cattle.

Permittees grazing livestock in the national forest are assigned

specific grazing allotments, and are required to handle their stock

according to approved management practices. Local officers endeavor to

stock all ranges conservatively for the purpose of preventing range

deterioration which reduces the volume of forage produced and starts

erosion.

Grazing permittees are selected on the basis of ownership of improved

ranch property which is dependent upon forest range to make it an

economic unit. This policy favors the established tax-paying citizen and

eliminates the tramp stockman who has no base of operations but exploits

the country through which he passes.

In spite of the fact that all ranges adapted to the grazing of livestock

have been fully stocked for many years, sufficient forage is reserved to

take care of the 3,500 elk, 6,200 mule deer, 750 antelope, 700 mountain

sheep, and 250 moose which inhabit the forest.

[Illustration: F-385820

_High above the clouds on Beartooth Plateau._]

Shoshone National Forest, Wyoming · 第 5 / 16 题