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<br />STATE OF COLORADO • <br />Richard D. Lamm, Governor <br />D EPARTMENT OF NATURAL RESOURCES <br />DIVISION OF WILDLIFE <br />Jack R. Grie b. Director <br />6060 Bro atl way <br />Denver, Colo ratlo 80216 (625-1192 <br />• <br />Wildlife Research Center <br />317 West Prospect Street <br />For[ Collins, Colorado 80526 <br />29 May 1580 <br />III IIIIIIIIIIIII III <br />999 <br /> <br />Mrs. Margaret Winter <br />Flatiron Paving Company <br />Post Office Box 229 <br />Boulder, Colorado 80306 <br />Dear Mrs. Winter: <br />r~~u~; 3 .; i:~oJ <br />NiNeD LAND ^n~CLk.^.~i.~ i 10111 <br />Colo. Dept. of IVatura( Hcselirces <br />Carul Palttke has forwarded a copy of yoDr letter of 21 May 158C con- <br />cerning Flatiron's proposal to fertilize sagebrush on 170 acres of non- <br />permit acreage near the Bourg Coal Property in North Park, Jackson County, <br />Colorado. Flatiron's interest in the sagebrush and sage grouse resource <br />and willingness to mitigate for loss of sage grouse habitat on the Bourg <br />Coal Property is commendable. <br />The Colorado Division of Wildlife supports Flatiron's proposal to <br />mitigate sage grouse habitat loss through fertilization with ammonium <br />nitrate (33.5$ N) at the rate of 100 lbs. of nitrogen per acre. Applica- <br />tion will be on a 1 time basis at a 1:1 ratio (i.e. 1 acre fertilized for <br />each 1 acre of the area under permit). Flatiron will be responsible for <br />and will contract for the fertilizer and application. The Colorado Divi- <br />sion of Wildlife in cooperation with Flatiron and the Bureau of Land <br />Management will design the mitigation plan and fertilizer application. <br />Application will be accomplished by the most reasonable (least costly) <br />method, hopefully in the fall of 1980. The Colorado Division of Wildlife <br />will continue to monitor the sage grouse population in the area at no cost <br />to Flatiron. Data obtained will be made available to all interested parties. <br />We presently have radios on sage grouse using the Denmark lek and will <br />be able to plot spring and summer use patterns for males prior to the start <br />of mining. It may be of interest that the number of males on the Denmark <br />lek peakeu at 144 in 1580, siiyhtly Higher tF;ali in 175• <br />Sincerely, <br />CEB/jib <br />cc: C. Pahlke <br />L. Carpenter <br />A. Whittaker <br />D. Bogart <br />C. Cesar <br />J. Wagner <br />C'u~c..C t .~tc.<..- . <br />r~:Al <br />Clait E. Braun <br />Wildlife Researcher <br />DE°ARiM EN7 OF rJAiURAL RESOURCES, Harris Sherman, Executive Director • WILDLIFE COMMISSION, Vernon C. Williams, Chairman <br />Thomas Farley, Vice Chairman • Sam Caud Jl, Secretary • Jean K Tool, Member • Roger Clark, Member <br />Jay K. Childress, Member • Dean Hull, Member • Dean Surtle, Member <br />