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I. Description of the Property <br />A. The Penrose Pit is a 112c sand and gravel mine located in Fremont County, CO. <br />The total disturbed area as of March 2017 is approximately 75 acres. <br />II. Inventory of Weed Species <br />A. Tim Cazier of the Division of Reclamation, Mining and Safety did a weed <br />inventory on March 8, 2016. At that time, the site was found to have Tamarisk <br />(salt cedar) trees in the permit area. <br />III. Weed Management Action <br />A. Prevention <br />The most important weed management action is to prevent weeds from <br />becoming established in the first place. Weed management will occur <br />throughout mining, as a component of site evaluation for stormwater <br />and MSHA compliance. Weed treatment during mining will reduce weed <br />management during final reclamation. <br />B. Weed Control <br />L Integrated Weed Management is a process by which one selects and <br />applies a combination of management techniques that will control a <br />particular weed species or infestation efficiently and effectively, with <br />minimal adverse impacts to non -target vegetation and allows mining to <br />continue. Fremont will implement the suggested weed control <br />techniques and treatment timing as recommended in the Fremont <br />County Weed Management Preferences Chart (attached). <br />Tamarisk will be physically removed with a Bobcat loader or by hand, <br />depending upon location. Fremont will only use mechanical methods and <br />will burn the litter using appropriate methods. <br />iii. Fremont will revegetate if necessary when tamarisk is in a reclaimed <br />area. Fremont will use the reclamation plan guidelines for seeding, etc. <br />If tamarisk is in the active mining area, mechanical removal will be used <br />and mining will continue. <br />