Creator

John Muir

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Description

Probably prepared as illustration for Sierra Studies series.

Ideal original unglacialized mtn [mountain] surface Ideal pre-glacial mtn surface

glacial curves of work glacial curves of work glacial curves of work glacial curves of work glacial curves of work glacial curves of work

Line of main axis range Present Axis of Summit

AB Line of successive glacier made summits- gradually driven from geological axis ---

CAD present outlines of cross section of summit

The present summits are fragments wh [which] have been cut down as above from a height wh heaven only knows Also the present axis of the range coincide with the the present line of summits but lies to the eastward of them because the range runs to the west of north. Consequently the west side of range received more heat & its glaciers were more wasted in summer & kept smaller than those of the more sheltered east side & were not able to do so much denudation work therefore the axis was overridden after being sharpened to a crest & the summits were gradually pushed westward & frozen position.

Date Original

1872

Circa Date

circa 1872

Source

Original drawing dimensions: cm.

Resource Identifier

MuirFiche3Frame0126.tif

Rights Management

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Contributing Institution

Holt-Atherton Special Collections, University of the Pacific Library

Keywords

John Muir, artwork, drawing, sketch, naturalist, history, historian, Geology

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