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e D UNITED STATES DEPARTMENT OF AGRICULTURE SOIL CONSERVATION SERVICE 301 South Nowes, Room 327, Ft. Collins, CO 80521 March 11, 1980 Mr. Murray E. Manley P. 0. Box 1159 Ft. Collins, CO 80522 RE; Reclamation of Mining Area (GLASS, John F., Sr .) Dear Mr. Manley: - The area, northwest of the city of Ft. Collins, to be mined in Mr. Glass's request is presently in irrigated cropland, but has the soils found in the ~sajor range sites of Overflow and Wet Meadow, as shown on the map.. The Overflow Range Site here cons ista of level soil that is loamy alluvial, moderately deep, with sands and gravels at depths of 40 inches. Water tables occur seasonally at depths of 40 to 60 inches. The ~41et Meadow Range Site has finer texture of clay loam alluvial soil with sand and gravel at depth of 12 to 40 inches. This soil is somewhat poorly drained and has seasonaly water table occurring at depths of 24 to 40 inches. Soils of both range sites would be classed as "prime land."~ The potential «ative vegetation of these range sites would include; 9witchgrase, Sig bluestem, Indiangrass, Western wheatgrass, Side-oats grams and Slue grams. When reclaiming the mined area, the topsoil should be stockpiled and then used to cover the spoiled areas at depth of 12 inches or greater. Any part not leveled should have slopes of 3:1 or flatter. If irrigation is not used for starting vegetation, then new seedings should be mulched with straw to improve the chances for success. This will help prevent wind erosion and shade the ground to help retain moisture. 4000/A c. of long straw should be anchored immediately after distributing with mulcher blades that will not cut the straw. A dryland mixri:re of grasses I would recommend is: Thickspike wheatgrass (Critana) Side oats grams (Vaughn) Switchgrass (Nebr. 28) (cont.) 5'~d'PLS /Ac. 2~FPLS/Ac. 1 FPLS/Ac. 9 //PLS Ac. Total 0