14 the main body yet extends to the fountain & flows with steady motion like a water fall No inexper[t] observer could point out the slightest difference in texture color or motion or form between a large avalanches [continuing] a minute or two & a waterfall of same breadth & length. There is something inexpressibly noble in the first bounding [free] of a large field of snow from Clds [Clouds] Rest. One day saw three start from [five] yds [beneath] me These have a course of about a mile into the Tenaya Can [Cañon] There are slopes & hollows back of Clds R [Clouds Rest] wh [which] favor the collection of deep snows wh [which] are yet so inclined that when the bottom of the mass becomes wet by the thaws of spring portions give way & glide with unutterable grandeur to the foot of [ ] Canyon a greater or lesser quantity of granite pressing it up on the opposite side of cañon Making [long] heaps of [mixed] material clearing out the channel of stream etc.
15 Filling up of lakes in the High Sierra Cutting of gaps [through] forest Trees that are thus carried away always rest head downward & are mostly uprooted so bodily that they are also carried sidewise on sloping sides of [avalanche] Depth of, frequency once in 100 yrs etc. difference in action by hardness or softness or brokenness of snout Making of moraine like dams for lakes [where] slopes wh [which] they [descend] does not break them up & distance rocks carried up opp [opposite] slope where bot [bottom] of can [cañon] is gently curved so as not to wedge & crush the avalanche Feeding of gls [glaciers] Mealy avalanches down steep aguilles [aiguilles] effects of on surface of gl [glacier] (Lakes of Up Tuol [Upper Tuolumne]) filled with river flowing [over] logs
Original journal dimensions: 10 x 16.5 cm.
Holt-Atherton Special Collections, University of the Pacific Library
John Muir, journals, drawings, writings, travel, journaling, naturalist