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REV102571
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Entry Properties
Last modified
8/25/2016 1:13:14 AM
Creation date
11/22/2007 12:56:43 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981022
IBM Index Class Name
Revision
Doc Date
9/1/2005
Doc Name
Block Biological Clearance Project
From
Oxbow Mining, LLC
To
DMG, BLM, Paonia Ranger District
Type & Sequence
TR53
Media Type
D
Archive
No
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communities resulting in more mixed vegetation types. The riparian azeas common to the <br />drainages of this community aze similar to those of the Spruce/Fir type discussed above. <br />The Cottonwood Vegetation Community is generally limited to the lower reaches of the <br />Hubbard, Bear, Elk, Sanborn and Coal Gulch drainages at elevations below <br />approximately 7,000 feet. However, an old, decadent stand of Cottonwoods was found at <br />approximately 8400 feet under the Elk Creek landslides. Slopes are typically neazly level <br />to level reflecting an overall wetter soil moisture regime as compared to the Douglas-fir <br />and Spruce/Fir vegetation communities located adjacent to drainages. Common tree <br />species include narrow-leaf cottonwood (Populus angustifolia) and box-elder (Acer <br />negundo) with Douglas-fir, Englemann spruce, and juniper species occurring on side- <br />slopes under drier soil moisture conditions. Aspen may also be present in topographic <br />depressions or in deeper, more fertile soils. Understory shrub species include those <br />adapted to more moist substrates such as chokecherry, raspberry (Rubus idaeus), and <br />Woods rose. As a consequence of more level topography and decreased runoff potentials, <br />the wetlands and Waters of the U.S. associated with this vegetation community aze <br />broader and more well developed as compazed to drainages in other vegetation <br />communities. <br />Scattered across the project area, the Grass/Forb Vegetation Community is associated <br />primarily with nearly level to moderately sloping sites on a variety of aspects. Similazly, <br />elevations vary. This community occurs as small natural clearings within other vegetation <br />types, revegetated development disturbances, and heavily grazed meadows often <br />associated with developed stockponds. Dominant vegetation includes a variety ofnative <br />and introduced herbaceous species depending upon the origin of each delineation. Native <br />species present include wheatgrasses (Agropyron sp.), bluegrasses (Poa sp.), <br />needlegrasses (Stipa sp.), and a variety of penstemons (Penstemon sp.), as well as rushes <br />(Juncus sp.) and spikerushes (Eleocharis sp.) bordering stock pond margins. Introduced <br />species present, depending upon the disturbed site, include smooth brome (Bromus <br />inermis), crested wheatgrass (Agropyron desertorum), Kentucky bluegrass (Poa <br />pratensis), and alfalfa (Medicago saliva) along with a number of introduced weedy <br />species at varying densities (Hayes Environmental Services, Inc., 1995). <br />The "Baze" cover designation includes rock slides, steep-walled cliffs, and other areas <br />where slumping has, and is occurring. <br />WATER INFLUENCE ZONES <br />Vegetation in the project azea for wetlands, other waters of the U.S. and riparian zones is <br />the same as that described in the February 2000 Final Environmental Impact Statement <br />(EIS) for the Iron Point Exploration License, the Iron Point Coal Lease Tract and the Elk <br />Creek Coal Lease Tract. (Page 3-94 through 3-96) Therefore, that write-up is included in <br />this report. These areas are delineated on Figure 1 -Vegetation Map. They aze found <br />primarily in drainages where streams aze depicted in blue, and are readily recognizable <br />due to the moisture regime and onsite vegetation_ <br />
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