2017-05-11_PERMIT FILE - C1981012 (8)

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-per-•-_~ySf"^~a+•ra-~~.^~.'i~il .tia~+-••a•.+L..~.^e~.s.. !-r,. .+~...~yr~•R7~r--~•~•f-~r,-n•-..s +.+i--~.--. - _- -~5.: was.: - ...~.. ~ M/'• -.~.~~ e. , .:~ ~ l page 4 • C3F--Midnight- Rombo complex, 35 to 50 percent slopes. This map utiCt is on mountainsides below basalt dikes. Slope is 35 to 50 percent. The native ,~ vegetation is grass, brush, and a few widely spaced trees. Elevation is 7,000 to 8,500 feet. The average annual preeipttation is about 18 to 23 inches, the average annual"air temperature is 42 to 46 degrees F., and the average frost-free season is 80 to 105 days. This unit is 45 percent Midnight channery and flaggy silty clay loam -~ and 45 percent Rombo channery and flaggy silty clay loam. Midnight soils ~ are near the top of the mountainside adjacent to basalt dlkes~ Rombo i sails are on the lover pert of the mountainsides. ~{{ Included in this unit are basalt dikes at the crest of the mountain. ~I Alea included are small areas of rock outcrop on lower slopes. _• ' The midnight soil is shallow and well drained. If formed Ln residuum end - '•' colluvium derived dominantly from shale. Typically the outface layer le channery or flaggy silty clay loam 4 inches thick. The subsurface Layer is very shaley silty clay loam over weathered shale bedrock at a depth of 16 inches. The soil Ss neutral. The shale bedrock is calcareous between the seams. -~ Permeability of the Midnight soil is moderately slow. Available water capacity is very low. Effective.rootinR depth Ss 16 to 20 inches. Runoff is • very rapid and the hazard of water erosion Ss very high. The Rombo soil is moderately deep and well drained. IC formed In stony colluvium end residuum derived dominantly from siltstone, shale, snd basalt. i Typically the surface layer is channery and flaggy silty clay loam 4 Lnchea thick. The upper 20 inches of the subsoil is very shaley and channery silty clay loam. The lower 10 inches is very shaley silty clay loam over gray shale. The soil • _~ is neutral throughout. ~ Thla unit is used for livestock grazing and wildlife habitat.