PERMFILE138157

• Permit No: C1981010
• IBM Index Class Name: Permit File
• Doc Date: 3/18/1991
• Doc Name: Miscellaneous Items
• Section_Exhibit Name: Appendix W 1990 Report Section 7.0
• Media Type: D
• Archive: No

WYOMING
• Department of Range Management P.o. Uox 33sa
Laramic, WY 82071-335
CoilegeofAgriculture Phone: [phone]
Faz [phone]
January 25, 1991
Mr. William Agnew
`t Sr. Environmental Engineer
Trapper Mining Inc.
,.~~ P.O. Box 187
"`„ Craig, CO 81626
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•.:~;, Dear Bill:
,;is'
I am pleased to respond to your January 16 letter requesting information
~; relevant to Trapper's proposed grazing of reclaimed areas and my thoughts on
,. ~ that proposal.
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'',~ , ~ 1 have enclosed several scientific papers related to livestock grazing on
~'U : reclaimed mined lands that you hopefully will find useful. The reprinted book
~' !~~ E '. chapter by Laycock (1989) is a fairly recent and comprehensive summary of
• ' ', ,'}!~ existing information on this subject that you perhaps may want to review first.
' The paper by Laycock and McGinnies (1985) provides interim findings of a
~'% `~ ~ grazing trial at another mine in your vicinity, and thus should be of obvious
•~ ~ ~!t`~ ~ interest. Moore et al. (1989) describes the design of a Wyoming coal company
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grazing trial that was implemented several years ago for purposes very similar
t ~~' to yours at Trapper (i.e., a "precedent"). The remaining papers describe results
'~.~.1 '~, ~ of mined land grazing research projects in Wyoming (Schuman et al. 1990),
itfl sti'/ ij,:,
!t/ ~`:i .1 North Dakota (Hofmann and Ries 1989, 1988; Hofmann et al. 1983) and
' ~ Montana (DePuit and Coenenberg 1989). The literature cited portions of all of
qi a ~ I~ ~ , these papers should provide you some good sources of additional information.
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''~ jl i l In the following paragraphs 1 shall provide some brief personal perspectives
r~~'`~' i( ~~/,' related to each of the 6 purposes of grazing stated in your January 16 letter.
~.?~j raj;,' /, These remarks are based uuon both my direct research experience and my
~~;`~,\I)~{/!~,~, knowledge of the findings of others in the realm of reclaimed land grazing.
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t;;`,~.~I,{, ~; 1) Promote greater utilization of vegetation for livestock production. The
'~+,`f `?~t?,\ ,' degree of forage quality, utilization and good to excellent animal response
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~I~ ~ demonstrated in most previous mined land grazing trials certainly suggests that
~'-'~'~' ~~ '~, ~ this objective can be well-met at Trapper, particularly in light of the probability
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' 71,c University of Wyoming u an equal opponunity/affirmalivc attion ina~ilulion. `''