Marsden Manson


Marsden Manson


John Muir



801 [illegible] Trust B[illegible]g

Aug 9th 1907

My dear Prof Muir:

Your letter of the 8th inst. is just before me. I regret that I was not in my office when you called; &, have just gotten back from a weeks trip.
There are something over a dozen reservoir sites surveyed by the U.S. Geological Survey in the Tuolumne basin. Of these Hetch Hetchy is the largest. I do not think that any serious damage can be made to the National Park by the full utilization of these reservoirs. The area of the Park is something over 1500 square miles The reservoir area is not one per cent of this none of the grand features of the region will be interfered with, even in Hetch Hetchy the great breeding spots of the musquito will be broken up.
Nature has forever put a stop to utilizing Yosemite Valley by denying a good foundation. But whether in this generation or the next or a later one, the full utilization of all practicable reservoir sites will be made to supply successive generations of mothers & children with pure water &



Prof Muir


to irrigate thirsty valley lands & to make them beautiful homes.
I send by same mail a copy of my views of the case & have marked es[illegible]al paragraphs which I hope will receive your endorsement.

Sincerely & [with?] best regards [you?]

Marsden Manson.



San Francisco

Date Original

1907 Aug 9


Original letter dimensions: 28 x 21.5 cm.

Resource Identifier


File Identifier

Reel 16, Image 0903

Collection Identifier

Online finding aid for the microform version of the John Muir Correspondence

Copyright Statement

Some letters written to John Muir may be protected by the U.S. Copyright Law (Title 17, U.S.C.). Transmission or reproduction of materials protected by copyright beyond that allowed by fair use requires the written permission of the copyright owners. Responsibility for any use rests exclusively with the user.

Owning Institution

Holt-Atherton Special Collections, University of the Pacific Library. Please contact this institution directly to obtain copies of the images or permission to publish or use them beyond educational purposes.


2 pages


Environmentalist, naturalist, travel, conservation, national parks, John Muir, Yosemite, California, history, correspondence, letters



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