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东峡林场位于大通县东北部,地处大板山南麓,海拔2700～3000米,山势平缓,土壤肥沃,雨量充沛,东峡河与瓜拉河,流经全林区。空气湿度大,气温低,海拔高,宜于云杉生长。在3000米以下的阴坡和半阴坡,有解放后封山育林恢复起来的大面积次生林,以云杉纯林为主,Ⅲ令级、单层林。植被属于针、阔叶林草甸草原区,广大地区为草甸草原或森林草原,主要树种为青海云杉(Picea crassifolia)。
Located in the northeast of Datong County, Dongxia Forest Farm is located at the south of Daban Mountain at an altitude of 2700 ~ 3000 meters with gentle hills, fertile soil and abundant rainfall. The Dongxia River and the Gua River flow through the whole forest. Air humidity, low temperature, high altitude, suitable for spruce growth. In the shady slopes and semi-shady slopes below 3,000 meters, there are large-scale secondary forests recovering from the closure of hills and forests after liberation, mainly in the pure spruce grove, Grade III and single-layer forests. The vegetation belongs to needles and broadleaf forest meadows, and the vast area is meadow steppe or forest steppe. The main species is Picea crassifolia.