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May Day and Idaho Mine Complex 112 (d) Permit Application <br />providing scenic beauty (Bartos, 20012) and unique habitat for birds and mammals (DeByle, <br />19853). <br />6.4.10(1)(a) Description of Present Vegetation Types <br />• <br />The mixed coniferous and deciduous forest of the May Day Idaho Mine Complex has a mosaic <br />of five identified vegetation types (Table 1, Exhibit C - Map C-5). The distinctions and transi- <br />tions between these vegetation types are not discrete but imprecise as the species present gradu- <br />ally shift in dominance and presence. In addition to the five vegetation types, three non- <br />vegetated areas are present including talus slopes and rock outcrops, disturbed ground from min- <br />ing operations, and open water. The majority of the historic mine operation areas have naturally <br />revegetated to mid-successional aspen groves and early successional Douglas fir forest. <br />Table 1. Vegetation Types Present, Day May Idaho Mine Complex. <br />CODE VEGETATION DOMINATES ASSOCIATED SPECIES <br /> TYPE <br />Mixed Coniferous Forest <br /> mixed coniferous Douglas fir ponderosa pine, white fir, & limber pine <br />MCF forest ponderosa pine Douglas fir; gambel oak (understor ), <br />Mixed Deciduous/Con iferous Forest <br /> Douglas fir & quaking ponderosa pine & limber pine; gambel <br />MD/CF mixed deciduous/ aspen oak (understor ) <br /> coniferous forest ponderosa pine & quaking aspen, Douglas fir <br /> ambel oak <br />FR forested riparian narrowleaf cottonwood willow species; sedges & scouring rush <br /> & blue spruce (understory) <br />Deciduous Forest <br />AF/ aspen forest/mesic quaking aspen & <br />MSM mountain shrub gambel oak serviceberry, snowberry, Wood's rose <br /> mix <br /> mountain mahogany, Utah juneberry, <br /> <br />MSM mountain shrub <br />gambel oak <br />mountain snowberry, Oregon grape, blue <br /> mix elderberry <br />Non-Vegetated Areas <br />talus slopes & rock outcrops talus and scree slopes & nearly 100% rock, may be lichen covered <br /> rock outcrops <br />disturbed portals, benches, mine <br />bare or nearly bare ground <br />(mining operations) rock <br />open water river & beaver and <br />2 Bartos, D. L. 2001. Landscape dynamics of aspen and conifer forests. Pages 5-14 in Sustaining aspen in western <br />landscapes: symposium proceedings; 13-15 June 2000; Grand Junction, Colorado (W. D. Shepperd, D. Binkley, <br />D. L. Bartos, T. J. Stohlgren, and L. G. Eskew, compilers). Proceedings RMRS-P-18. United States Department of <br />Agriculture Forest Service, Rocky Mountain Research Station, Fort Collins, Colorado. <br />3 Debyle, N. V. 1985. Wildlife. Pages 135-152 in Aspen: ecology and management in the western United States. <br />General Technical Report RM-119 (N. V. DeByle and R. P. Winokur, editors). United States Department of Agri- <br />culture Forest Service, Rocky Mountain Forest and Range Experiment Station, Fort Collins, Colorado. <br />May Day Idaho Mine Complex 112(d) Permit Application <br />September 21, 2010 <br />2