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<br />iii iiiiiiiiiiiiiiii <br />C crpRUs <br />~ Yampa Valley <br />July 25, 1991 <br />~~~~~~~~ <br />Tony Waldron, Reclamation Specialist <br />Colorado Mined Land Reclamation Division ~~~ 2 9 1991 <br />1313 Sherman Street, Room 215 Mined fan <br />Denver, CO 80203-2273 Reclamatipn pi ~sip~ <br />Dear Mr. Waldron: <br />Re: Grazing 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 area, and Lower Area 51 are <br />scheduled for grazing during [he 1991 season. Pazcels 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 area. Parcels <br />which are less than 4 years old are not scheduled to be grazed; this includes all 1988 channel <br />repair areas 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 year. An 8'fz" X 11" location 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 />Marcus A. Middleton <br />Environmental Specialist <br />MAM:dg <br />Cyprus Yampa Valley Coal Corporation <br />29587 Routt County Road #27 <br />Oak Creek, Colorado 80467 <br />303-8793800 <br />Enclosure <br />