2017-02-03_PERMIT FILE - C1980004 ‎(2)‎

• Permit No: C1980004
• IBM Index Class Name: Permit File
• Doc Date: 2/3/2017
• Section_Exhibit Name: Volume I Sections 2.03 & 2.04
• Media Type: D
• Archive: No

2.04.9 Soils Resource Information
The present plant community is mainly greasewood, four -wing salt bush, western
wheat grass, and cheat grass.
The potential productivity is 900 to 500 pounds of air-dry vegetation in favorable
and unfavorable years, respectively.
This map unit is in capability unit Vlw dryland, foothills swale range sites.
MAP UNIT: RO - ROCK OUTCROP, VARIABLE SLOPES
This map unit is on strongly sloping to extremely steep mountain slopes, uplands
and sides slopes of mountains. There are a few scattered pinion and juniper in a
juniper -woodland community.
Rock outcrops include vertical sandstone or shale cliffs, uplifted and tilted
massive beds, and areas with less than three inches of soil over bedrock.
Included in this map unit is about 10 percent of area where more than 3 inches of
soil is overlaying bedrock. The unit is used for wildlife habitat.
MAP UNIT: TRDE - TORRIORTHENTS - ROCK OUTCROP COMPLEX, 15 TO 65
PERCENT SLOPES
This map unit is on moderately sloping to extremely steep mountain slopes and
canyon bluffs. The slope is 15 to 65 percent. The vegetation is mainly a juniper
woodland community.
Included in this map unit are Torriorthents, rock outcrops, and Haplargids. The
map unit includes about 30 percent loamy, skeletal families of Lithic Ustic Torriorthents
and 40 percent moderately deep, and deep loamy skeletal, and sandy skeletal Ustic
Torriorthents. Rock outcrops are vertical sandstone or shale cliffs, uplifted and tilted
massive beds, and area with less than three inches of soil over bedrock and comprise
20 percent of the unit. Included are about 10 percent moderately deep, and deep loamy
and coarse loamy Ustic Haplargids.
The shallow Torriorthents and the moderately deep, and deep Torriorthents are
similar to the Rentsac series and the Nihill series respectively. The Nihill soil is
described above.
The Rentsac soil is a member of the loamy, skeletal, mixed (calcareous), frigid
family of the Lithic Ustic Torriorthents. A representative profile of the Rentsac very
gravelly loam, sample MC 11, 1,060 feet east and 2,035 feet north of the southwest
corner of Section 21, T 7S, R 102 W at an elevation of 5,452 feet is:
Al 0 to 3 inches; light yellowish brown (10 YR 6/4) very gravelly loam, yellowish
brown (10 YR 5/4) moist; weak very fine granular breaking to very fine single
5 Range site established for Rio Blanco County.
PR -02 2.04-44
10/12