To Theodore Roosevelt[Martinez, CaliforniaApril 21, 1908]Dear Mr. President:I am anxious that the Yosemite National Park may be saved from all sorts of commercialism & marks of man\u27s work other than the roads, hotels, etc., required to make its wonders & blessings available. For as far as I have seen there is not in all the wonderful Sierra, or indeed in the world, another so grand & wonderful & useful a block of Nature\u27s mountain handiwork.There is now under consideration, as doubtless you well know, an application of San Francisco Supervisors for the use of Hetch Hetchy Valley & Lake Eleanor as storage reservoirs for a City water supply. This application should I think be denied, especially the Hetch Hetchy part, for this Valley, as...