Snow depth was measured in two ways, one with a stick and the other with scales attached to deciduous trees, along the snow courses in the upper region of Tadami river, 1957. It was found that snow depth was less at within the distance of one to two meters from the root of a tree than at the further distance from it and that the difference was greater on the windward slope than on the leeward noe. That is considered perhaps because of the disturbance of the wind around a tree, neither of the interception of snow fall by the branches nor of the reflection of the solar radiation from the tree.