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太白县林业区划小组,进行森林资源调查时,在黄柏原公社大蹇沟大队锯齿沟的山腹上部(海拔2200米处),发现有4株珍稀古树——铁杉,远望如塔,高耸入云,形状雄伟。据测定,最大株,树高39米,胸径1.72米,树龄920年;最小株,树高37米,胸径1.53米,树龄880年。树干通直,树势旺盛,树皮暗灰褐色,呈不规则纵裂或片状剥落;大枝平展,枝梢下垂,小枝淡褐黄色;叶枕凹槽内有短毛。叶排成两列,长1.2～1.4厘米,宽2～2.5毫米,先端钝圆,有凹缺,边缘全缘。经鉴定,该树为铁杉属的铁杉Tsngn chinensis(铁干松、仙柏、铁干杉、刺柏)。
Taibai forestry zoning group, for forest resources survey, in the original cork Dabo Gou ditch Grove zigzag cog on the hillside (2200 meters above sea level), and found four rare ancient trees - hemlock, Yuanwangru tower, towering towering Into the clouds, the shape of the majestic. According to the determination, the largest strain, tree height 39 meters, diameter 1.72 meters, the age of 920 years; the smallest strain, 37 meters high, diameter 1.53 meters, age 880 years. Straight trunk, strong tree vigor, bark dark gray brown, irregular longitudinal split or flake; large branches flat, shoots drooping, twig pale brown; Leaves arranged in two columns, length 1.2 ~ 1.4 cm, width 2 ~ 2.5 mm, apex obtuse, with concave, margin entire. The tree was identified as Hemlock’s Tsangn chinensis (Caragana korshinskii, Seneca cypress, Taxus chinensis, Juniperus).