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cropland areas are mined and reclaimed, Trapper converts all small grain produc- <br />tion fields to permanent vegetation with the approved haycrop mix in order to <br />reduce erosion potential and manage these areas until they revert to historical use <br />after bond release. In 1990, Trapper withdrew approximately 66.12 acres and <br />seeded those acres with the approved perennial haycrop mix. <br />1 ~.6 Previously Revegetated Acres <br />The locations and acres for al] previously revegetated areas, seeded to perennial <br />species, are presented in map(s) 1.0. To date, Trapper has revegetated approxi- <br />mately 1,473 acres within the boundaries of active mining and revegetated an <br />additional 161 acres within the permit boundary but outside topsoil stripping <br />limits. <br />Prior to 1982, Trapper had initially seeded all reclaim units to a winter wheat <br />cover crop except for approximately 15 acres of test plots. The volunteer nature <br />of the winter wheat caused severe competition with perennial seeding efforts <br />during 1981 and 1982. A two-year program of seeding alternate wheat strips to <br />perennials began in 1983 and ended in 1984. This program affected approxi- <br />mately 275 acres. Direct seeding of perennial species only began in 1982 on top- <br />• soiled areas in Ashmore, Derringer and Enfield pits. This explains several 1984 <br />map units (Map 1.0) for Ashmore, Colt and Derringer pits. <br />Not shown on Map(s) 1.0 in this annual report are the areas seeded to temporary <br />perennial mixes along roadways, dams and associated disturbances such as topsoil <br />piles which will require final reclamation prior to the end of the project (life of <br />mine). <br />• <br />