J. G. Hall 1952 July 4 Sagehen Creek, 3 mi. NW Hobart Mills, Nevada Co., Calif. 12:15 PM. Followed path past roadside colony down to large colony found July 2. Some 10 & 11" aspens below the main dam. Well- worn path from stream below dam to 12" aspen felled roughly parallel to creek & 10' from it. Upper part lodged in another aspen but main trunks still parallel to ground & thus available to beavers. Bark stripped from lower side. Rapouche's nest hole in stream-side aspen 12' from ground. Several large aspen, one 14-15" diam., have beaver tooth marks about 18" from ground. Will check to see if these trees are ever cut. Impression of youngness of pond again confirmed by presence of many impounded pines which would have been dead by now if the colony had been long established. Some show signs of dying. Great stand of dead lodgepoles about 500 yds. below this colony which made me suspect another colony but no colony or sign of one could be found.