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Power Lines <br />Because Colowyo utilizes many electric-powered mining machines, a network of electric <br />power lines is located in the permit azea to supply electricity to the equipment. The <br />locations of the Colowyo power lines aze shown on the Existing Structures -South Map <br />(Map 22). <br />Colowyo has constructed the power lines within the permit azea for compliance with the <br />raptor-proof power pole requirements ofREA Bulletin 61-10, Protection of Bald and <br />Golden Eagles for Power Lines. <br />Five major pieces of equipment at Colowyo, the three draglines, and two shovels aze <br />powered by electricity. Therefore, during the life of the mine it is necessary to <br />periodically move the existing power line loop to accommodate the advancement of the <br />pit. The location of the anticipated power line loop changes are also- shown on Map 22, <br />Existing Structures -South. <br />In addition to power poles and lines, Colowyo will be using power cable to connect to the <br />equipment that requires electricity (ie. Shovels, draglines, hiwall miner, etc.). This is a <br />rubber coated electrical cord that is used to run on top of the ground to convey electrical <br />power from the substation to the electrical operated equipment for mining. If the corridor <br />for the cable is covered with brush, making it inaccessible by a light vehicle, then the <br />surface brush will be removed as a minimum. If not then the power cable will be place <br />over the surface without additional disturbance. In most cases topsoil will not be <br />removed or salvaged due to the minimal impact to the environment. However if <br />necessary, the topsoil will be salvage in either a windrow, stockpile, or placed on a <br />regraded azea ready for topsoil placement. The corridor of disturbance will generally be <br />a dozer blade wide or approximately 25 feet. This allows for the cable equipment to <br />access the corridor for placement and retrieval of the power cable. In addition this allows <br />for small vehicle access for any maintenance activity that may azise. <br />Haul and Access Roads <br />The haul roads and access road utilized at the Colowyo operation are shown on the <br />Existing Structures -North Map (Map 21) and the Existing Structures -South Map (Map <br />22). The road gradients aze <br />cFa.r.rzooalrntsa 2.05-20 Revision: MR-64 <br />PAP 2.05-20_070604.doc Date: 716104 <br />