Preliminary drawing revised and published as figure 10 in "Studies in the Sierra No. II: Mountain Sculpture."
After the passage of the main glacier of Tenaya in the direction of the arrows there seems to have been some lingering ice wh [which] flowed downwards eroding shallow groove channels in the direction of steepest [declivity] & even before the total recession of the main gl [glacier], there would probably be a wing shaped ice slope [seamed] probably in the shadow which with slow action [would] eroded the upper portion of the dome. All of the rocks forming the south walls of the deep Yosemite Canons in their [many] [forms] show more or less sculpting of this light after action. Half Dome N [north] face. From A to B the height is nearly 1800 feet from A to the foot of rock at Mirror Lake about 3000. This upper portion is very nearly vertical. The lower slopes to the Lake at an angle of 37 [degrees] [ ] & D are sharp roof shaped rocks forming a portion of the [ ] Half Dome rock. Along the base of the vertical portion of [the] [ ] are stumps of slabs wh [which] have been broken off the vertical [front] at E & F are the edges of [slabs] the same slabs. Thus in this one rock mass we have all of the principal forms of Dome & peak with the various conditions of cleavage planes necessary to their productions. At the summit we have the vert [vertical] planes wh [which] gave rise to the face A B cut by the curved flakes wh [which] gave rise to the dome outline B b From A downwards we have the sloping clvg [cleaveage] wh [which] gave rise to & measured the [ ] of it’s face. A & C & D we [ ] the peak [outline] by the better [ ] of [the] two [ ] oblique [ ] any
Original drawing dimensions: 21.5 x 31.5 cm.
To view additional information on copyright and related rights of this item, such as to purchase copies of images and/or obtain permission to publish them, click here to view the Holt-Atherton Special Collections policies.
Holt-Atherton Special Collections, University of the Pacific Library
John Muir, artwork, drawing, sketch, naturalist, history, historian, Mountains
In Copyright. URI: http://rightsstatements.org/vocab/InC/1.0/
This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).