ADDENDUM 304(9)-8

SITE PARAMETERS BY COMMUNITY TYPE AND PLOT, BULL MOUNTAINS MINE NO. 1 STUDY AREA, 1991

VEGETATION TYPE

PAGE

SURFACE DISTURBANCE AREA 8-2

GRASSLAND 8-2

SHRUB/GRASSLAND 8-4

PONDEROSA PINE SAVANNAH and FOREST 8-5

BURNED PONDEROSA PINE STANDS 8-7

TAME PASTURE 8-10

EXTENSIVE STUDY AREA 8-11

GRASSLAND 8-11

SHRUB/GRASSLAND 8-12

PONDEROSA PINE SAVANNAH and FOREST 8-13

BURNED PONDEROSA PINE STANDS 8-15

TAME PASTURE 8-16

8-1 (Rev. 6/92)

Addendum 304(9)-8 Actual Disturbed Acres of Vegetation Community Types within the Surface Disturbance Limits

App. 001768-1A

Rev. 5/08

MAP UNIT SURFACE PERCENTAGEMap 304(9)-9 RAIL LOOP FACILITIES STOCKPILES HAUL ROADS WDA OF ACREAGE

10 GRASSLAND 18.4 10.0 3.0 5.3 52.9 89.6 23.31%11 Agropyron SmithII / POA Pratensis 0.0 0.0 0.0 0.0 1.6 1.6 0.42%12 Stipa viridula / Agropyron smithii 12.2 4.5 1.8 1.8 49.8 70.1 18.24%13 Stipa comata / Agropyron smithii 4.9 3.9 1.0 1.8 1.2 12.9 3.36%15 Andropogon scoparius / Calamovilfa longifolia 1.3 1.6 0.1 1.7 0.3 4.9 1.29%20 SHRUB/GRASSLAND 3.1 2.1 0.9 0.4 32.4 38.8 10.09%21 Artemisia cana / Stipa viridula 1.0 2.0 0.7 0.4 22.5 26.5 6.89%23 Symphoricarpos occidentalis / Poa pratensis 0.0 0.0 0.0 0.0 5.3 5.3 1.38%25 Rhus aromatica / Agropyron spicatum 2.1 0.1 0.2 0.0 4.6 7.0 1.81%30 PONDEROSA PINE SAVANNAH & FOREST 8.6 7.7 4.4 1.5 38.4 60.6 15.77%31 Pinus ponderosa / Agropyron spicatum 7.8 7.7 4.4 1.5 29.1 50.5 13.14%34 Pinus ponderosa / Symphoricarpos occidentalis 0.8 0.0 0.0 0.0 9.3 10.1 2.64%40 BURNED PONDEROSA PINE STANDS 31.2 0.9 0.1 0.6 96.8 129.7 33.73%41 Burned Pinus ponerosa / Agropyron spicatum 21.8 0.9 0.0 0.5 47.5 70.7 18.40%44 Burned Pinus ponderosa / Symphoricarpos occidentalis 9.4 0.0 0.1 0.1 49.3 59.0 15.33%50 AGRICULTURAL LANDS 12.9 5.5 0.7 7.7 2.3 29.2 7.59%51 Tame Pasture 6.1 5.5 0.7 7.7 0.0 20.0 5.20%52 Hay Meadows / Grain Crops 6.9 0.0 0.0 0.0 2.3 9.2 2.39%

MISCELLANEOUS 0.0 10.8 23.5 1.1 1.2 36.6 9.51%60 Mine Disturbance 0.0 10.8 17.2 1.1 0.6 29.8 7.75%61 Reclamation 0.0 0.0 6.3 0.0 0.0 6.3 1.63%70 Residential 0.0 0.0 0.0 0.0 0.5 0.5 0.14%

TOTAL 74.3 37.1 32.6 16.5 224.0 384.5 100.00%

See Map 304(9)-9B "Vegetation Community Types" for locations of vegetation communitites and locations of disturbance limits

COMMUNITY TYPE TOTAL

PROPOSED DISTURBANCE (ACRES)