PERMFILE53288

• Permit No: C1980005A
• IBM Index Class Name: Permit File
• Doc Date: 3/23/2007
• Section_Exhibit Name: Tab 11 Wildlife
• Media Type: D
• Archive: Yes

•
RESULTS AbID DISCUSSIC~I
The Seneca II wildlife study area occupies aop*nY~TM~tely 2700 acres in
T5N R87W, and T6N R87W aT~*+~Y»++~tely 10 miles Southeast Of Hayden, Routt
County, Colorado (See Map 1, Appendix A for permit area boundazies).
Topography and Precipitation. The Seneca II wildlife study area ranges
in elevation fran 6700 to 8000 feet and is characterized by moderate to
gently rolling hills. Areas of rocky outcroppings are interspersed through-
out the study area and aze especially orrm;nant on the northwestern and
western edges of the study area. Although the study area itself has a
moderately hilly topography, it is bordered to the east, south and west by
relatively flat terrain.
Average annual precipitation at the Steamboat Springs Weather Station for
the years 1952-1979 was 23.06 inches (range of 17.15 - 36.9 inches) much
of which generally occurred between December and April.
Vegetation and soils. Three major vegetation types occur on the study area:
1. Mixed brush
2. Aspen (mixed brush subtype)
3. Upland sagebrush
Of these, the mixed brush type/aspen subtype occupies over 608 of the total
area. Each vegetation type is discussed sepazately below. Data presented
in this discussion were derived from a vegetation baseline study conducted
in 1979 at Seneca II Mine (Mariah Associates, 1980).
• Mixed brush vegetation type. The mixed brush vegetation type occupies 1650
acres or 60.88 of the total undisturbed lands in the study area (Maziah
Associates, 1980). The mixed brush type is predominant on all slopes and
-19-