John Muir


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Circa Date

circa 1887



a very sun, the whole immense summit seems red hot

The Illilouette Canon is one of the most secluded of all the valley chambers. Hushed as the dense forests where rolls the Oregon

Lower Yo. [Yosemite] Fall

Alt. [altitude] River 4050

" Wher [Where] fall strikes 4325

" Head canon W. [west] of fall 4400?

Slope from " to " 35° [degrees]

Direction of flow S. 10° E [south 10 degrees east]

View from canon " " Sentinel Dome, Starr King mile of river & a Laurel buds swelling, nearly open January 12th Adiantum, Rock Cress Heuchera grape vine spiraea Big round drops & mist ever & anon striking leaves & grass tufts making them tremble as if struck with hailstones

Slope of Lamons Avalanche 33° [degrees]

Height 530 feet

January 15th 1873 It does not now lack happy life humming insect wings, pigeons, squirrels, banks of fragrant applopapus [Haplopappus] asters penstemons Eriodiction [Eriodictyon] Cheilanthes, Pellaea & gymnograma [Gymnogramma] all tingling in the warm weather of this sunny boulder slope


The trees are mostly oaks & few pines.

Alt. [altitude] valley bottom 4150

" Slope back of Leidigs 1030 feet, inclination 28° [degrees]

" Camp top Canon 2700 "

" N [north] " divide 2920

Dir. [direction] Clv’g. [cleavage] " Canon & falls N. 30 E. [north 30 degrees east]

Alt. [altitude] divide between Yo Semite [Yosemite] Creek

" & Canon W. [west] of fall 130 ft [feet]

" W. [west] wall of Can [Canon] W [west] of fall 7420 "

" Eagle Point 7920 " 300 ft [feet] less than Sent. [Sentinel] Dome


[sketch: N 30 E [north 30 degrees east]]

On w. [west] side Canon w [west] of Yo [Yosemite] Fall. About 20 feet high

First tier of nearly developed blocks rounded by ice-action on side next Canon Next lower tier also well developed since it suffered the stress of the ice. The lowest less so & the rock below shows but little trace of clvg [cleavage] planes.


Blocks in canon W. [west] of Eagle Points showing mingled square and diagonal cleavage

These are interesting as illustrating the forms of most of the valley rocks on a small scale & the determining clv’g [cleavage].

Date Occurred


Resource Identifier

MuirReel32 Notebook01 Img021.Jpeg

Contributing Institution

Holt-Atherton Special Collections, University of the Pacific Library

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