PERMFILE114359

• Permit No: M1999117
• IBM Index Class Name: Permit File
• Section_Exhibit Name: EXHIBIT A LEGAL DESCRIPTION
• Media Type: D
• Archive: No

•
50
capacity is low. Surface runoff is slow, and the soil
blowing hazard is moderate.
This Norte soil is used for irrigated alfalfa, barley,
lettuce, and potatoes and for range (fig. 8). Applications
of commercial fertilizers are generally needed in addition
to manure and plant residue. Generally, small grains
respond to applications of nitrogen and phosphate
fertilizers. Use of minimum tillage practices and high-
residue crops helps prevent soil blowing.
Sprinkler, furrow, and border irrigation methods are
suitable for this Norte soil. Sprinkler irrigation is suitable
for most crops. Furrows are suitable for potatoes and
Soil Survey
lettuce. Border systems that have short lengths of run
are suitable for alfalfa, small grains, and pasture. Land
leveling and proper length of run are needed to prevent
water loss from seepage and the buildup of salts in the
soil.
The potential natural vegetation on this soil is
dominated by blue grams, Indian ricegrass, western
wheatgrass, needleandthread, winterfat, and fourwing
saltbush. If the range deteriorates, the proportion of
Indian ricegrass, needleandthread, and western
wheatgrass decreases, and that of blue grams,
squirreltail, threeawn, snakeweed, and rabbitbrush
increases. Undesirable weeds and annual plants invade
and become more abundant as the range condition
declines.
Establishing rangeland seedlings is difficult because of
the low rainfall and the low available water capacity.
Deferred grazing, cross fencing, and stockwater
developments help to prevent range deterioration and
promote the growth of the more desirable plants.
Nonirrigated areas of this soil that are used as range
have limited potential for wildlife habitat because of the
low vegetative production. These areas support such
wildlife as antelope, jackrabbit, cottontail, and coyote,
along with various rodents. In irrigated areas, crop
residue from alfalfa, barley, and oats can provide food
for pheasants and waterfowl.
This soil is suited to homesite development. The main
limitation is wetness. Wetness can be reduced by
installing drain file around footings. Sewage lagoons and
trench-type sanitary landfills can cause pollution of
groundwater. Shoring is commonly needed during
excavation to prevent cutbanks from caving. The Norte
soil is a fair source of sand and gravel and a good
source of roadtill.
This soil is in capability subclasses Ills, irrigated, and
Vlls, nonirrigated. It is in the Mountain Outwash range
site.
53-Ouray-Babe, dry complex, 9 to 25 percent
slopes. These soils are on fans at elevations of 7,800 to
8,500 feet. The average annual precipitation is about 14
inches; the average annua{ air temperature is about 40
degrees F; and the Trost-free season is about 90 days.
The Ouray soils make up about 65 percent of the unit,
and the Sabe soils make up about 35 percent.
The Ouray soils are deep, excessively drained soils
formed in alluvium from sand. Slope ranges from 9 to 15..
percent. Typically, the surface layer is grayish brown and
brown loamy sand about 13 inches thick. The underlying;
material to a depth of 60 inches is yellowish brown and -.
pale brown loamy sand. ,,
In the Ouray soils, permeability is rapid. Effective rooting
depth is 60 inches or more. Available water capacity is
low. Surface runoff is slow, and the erosion hazard is.1o
to moderate. The soil blowing hazard is high.
major crop on Norte gravelly sandy loam. s