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Table A-2 Aspen <br />1. Rate sanq~led: October 1976 <br />2. Location: Hayden Gulch, Foutt County, Colorado <br />3. Elevation: 7,560 feet <br />4. Slope: 5-lOb <br />5. Aspect: Northeast <br />6. Physiography: Mountainous <br />7. Soil parent material: Williams Fork formation (sandstone, silt- <br />stone, mudstone and shale) <br />8. Special environmental features: The soil surface of the aspen <br />stand has been much disturbed by the northern pocket gopher, <br />Thoiromys talpoic~s. Ibm?stic cattle, Bos bos, have grazed the <br />grasses, forts and shrubs; and elk, Cervus canadensis, have <br />frequently eaten the bark of the aspen as evidenced by the <br />nuamsous scars. Sapsuckers, Sphrlapicus sp., haves drilled many <br />holes into the asp~.n. <br />9. Vegetation <br />a. Trees <br />Species Max Age Max Ht # trees/qd 8 of all <br />(Yrs) (m) (375m2) trees <br />Populus tremuloides 53 10 79 100 <br />Total - - 79 100 <br />Species Rep <br /><1 <br />Populus tremuloides 42 <br />Standing dead <br />Age/size class <br />is to z7 7 o s9 ~ <br />5 7 8 20 <br />20 34 48 <br />1 <br />i <br />A-4 <br />