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ELU #3 <br /> Geomorphology : This unit is on mountain side- <br /> slopes . Slopes are generally in the 16-40% range <br /> with some areas being steeper . Erosion hazards <br /> and mass movement potentials are moderate . Soils <br /> are forming from basalt , sandstone, and shales . <br /> This unit is the source of high quality water with <br /> little potential for increased yields through <br /> vegetative manipulation . First , second and third <br /> order streams occur in this unit . <br /> Vegetation: This unit has mountain meadows , <br /> shrubs and rock outcrops . Production potential <br /> varies , but is generally high . Revegetation <br /> potential is moderate . <br /> ELU #4 <br /> Geomorphology : Steep slopes , usually 35% or <br /> steeper . The soil has a high erosion hazard . <br /> Some of the soils are forming on Marcos Shale and <br /> have a high mass movement potential . The streams <br /> run from high elevation, steep gradient streams , <br /> to depositional streams through steep mountain <br /> sideslopes at the lower elevations . The potential <br /> to increase water yield through vegetation manipula- <br /> tion is low. <br /> Vegetation: Mountain meadows , shrubs and rock <br /> outcrops . Production potential varies , but it is <br /> generally high . Revegetation potential is moderate . <br /> ELU #8 <br /> Geomorphology: Mountain sideslopes , some deposi- <br /> tional areas . Erosion hazard and mass movement <br /> potential are variable but predominately high . <br /> Several perennial streams in this unit and these <br /> could be damaged by man ' s activities . Geology is <br /> varied , but the dominant rock types are sandstone , <br /> siltstone, shale and basalt . <br /> Vegetation: Grass , shrubs and rock comprise the <br /> primary ground cover in this unit . The unit is <br /> highly variable in vegetation and production <br /> potentials . <br /> -6- <br />