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~- c~RUs <br />~ Yampa Valley <br />• • III IIIIIIIIIIIII III <br />Cyprus Yampa Valley Coal Corporation <br />29587 Routt County Road #27 <br />Oak Creek, Colorado 80467 <br />303.879-3800 <br />July 25, 1991 <br />'~-s~~''c1iJi~ <br />Tony Waldron, Reclamation Specialist <br />Colorado Mined Land Reclamation Division ~~~ 2 ,9 ~ggl <br />1313 Sherman Street, Room 215 ,yli„;~ <br />Denver, CO 80203-2273 R~~!_ -Qr;d <br />.,~:r~;~~, Divrgi~n <br />Dear Mr. Waldron: <br />Re: Grazin¢ on Mines 1. 2. and Eckman Park 1991: Permit C-81-071 <br />This letter is to notify the Division of the planned grazing schedule for the above-referenced <br />permit during 1991. As previously discussed, the Mine 2 azea, and Lower Area 51 aze <br />scheduled for grazing during the 1991 season. Parcels which require sampling will be monitored <br />prior to grazing taking place in these areas. Area 1 is scheduled to be rested this year, but <br />should water become critical CYCC reserves the option to allow grazing in this azea. Pazcels <br />which aze less than 4 years old aze not scheduled to be grazed; this includes all 1988 channel <br />repair azeas in Area 51. The Mine 2 area will continue to be grazed as previously approved in <br />TR 87-20, supporting some 800 head of steers for approximately 28 days in both spring and fall. <br />On the basis of data collected from the Lower Area 51 Grazing area (composed of some 198 <br />acres, 97 of which are reclamation), the calculated forage available for grazing at 50% <br />utilization is 210,192 pounds. Divide this value by 6401bs/AUM for steers, and the lower Area <br />51 shows capacity to support some 328 AUM's of grazing, or approximately 100 head of steers <br />for 90 days. As such, Lower Area 51 should easily support the anticipated 75 head of steers <br />for the approximately 60 days of grazing planned for 1991. <br />As you can see, this initial stocking rate is extremely conservative in view of the production data <br />obtained eazlier this yeaz. An 8'fx" X I1" Iocation map of the Lower Area 51 grazing has been <br />included for your reference. <br />Should you have any questions, please contact me at your convenience. <br />Sincerely, <br />«~"ll~j~~~~ ~~ <br />Marcus A. Middleton <br />Environmental Specialist <br />MAM: dg <br />Enclosure <br />