38 DEVELOPMENT OF THE NATIONAL PARKS. 



Proceedings of the [Third] National Park Conference held at Berkeley, Gal., 

 March 11, 12, and 13, 1915. 1915. 166 pages. 20 cents. 



Contains discussions of national-park problems by officers of the Government and 

 others. 



PANORAMIC VIEWS. 



The panoramic views listed below are based on accurate surveys 

 and give an excellent idea of the configuration of the surface as it 

 would appear to a person flying over it. The meadows and valleys 

 are printed in light green, the streams and lakes in light blue, the 

 cliffs and ridges in combinations of color, and the roads in light 

 brown. The lettering is printed in light brown and is easily read on 

 close inspection, but merges into the other colors when the sheet is 

 held at some distance. 



Panoramic view of Crater Lake National Park. 16^ x 18 inches, scale 1 mile 

 to the inch. 25 cents. 



Panoramic view of Yosemite National Park. 18^ x 18 inches, scale 3 miles to 

 the inch. 25 cents. 



Panoramic view of Glacier National Park. 18$ x 21 inches, scale 3 miles to 

 the inch. 25 cents. 



Panoramic view of Mount Rainier National Park. 20 x 19 inches, scale 1 

 mile to the inch. 25 cents. 



Panoramic view of Yellowstone National Park. 18 x 21 inches, scale 3 miles 

 to the inch. 25 cents. 



Panoramic view of Mesa Verde National Park. 22 x 19 inches, scale three- 

 fourths mile to the inch. 25 cents. 



Panoramic view of Rocky Mountain National Park. 14 x 17 inches, scale 

 2 miles to the inch. 25 cents. 



MAPS SOLD BY THE U. S. GEOLOGICAL SURVEY. 



The maps listed below may be purchased from the Director of the 

 United States Geological Survey, Washington, D. C. Remittances 

 shquld be by money order or in cash. Personal checks can not be 

 accepted. A discount of 40 per cent is allowed on all orders for maps 

 amounting to $3 net or more. 



Crater Lake National Park, Oreg. Limiting parallels, 42 48 and 43 04 . 

 Limiting meridians, 122 and 122 16 . Size, 19 by 22 inches. Scale, 1 : 62,500. 

 or about 1 mile to 1 inch. Contour interval, 50 feet. An illustrated description 

 of the lake and the manner of its formation is given on the back of the sheet. 

 Price, 10 cents. 



Glacier National Park, Mont. Limiting parallels, 48 14 36&quot; and 49. 

 Limiting meridians, 113 10 and 114 30 . Size, 31 by 35 inches. Scale, 1 : 125,- 

 000, or about 2 miles to 1 inch. Contour interval, 100 feet. Price, 25 cents. 



Mesa Verde National Park, Colo. Limiting parallels, 37 09 18&quot; and 

 37 21 . Limiting meridians, 108 15 and 108 37 30&quot;. Size, 31 by 46 inches. 

 Scale, 1:31,250, or about one-half mile to 1 inch. Contour interval, 25 feet. 

 Price, 20 cents. 



Mount Rainier National Park, Wash. Limiting parallels, 46 43 43&quot; and 

 47 00 . Limiting meridians, 121 30 and 121 55 . Size, 22 by 23 inches. 

 Scale, 1 : 62,500, or about 1 mile to 1 inch. Contour interval, 100 feet. Price, 

 10 cents. 



Yellowstone National Park, Wyo.-Mont.-Idaho. Limiting parallels, 44 08 

 17&quot; and 45 01 55&quot;. Limiting meridians, 110 and 111 05 53&quot;. Size, 32 by 

 36 inches. Scale, 1 : 125,000, or about 2 miles to 1 inch. Contour interval, 100 

 feet. Price, 25 cents. 



Yosemite National Park, Cal. The park limits established by acts of Congress 

 are shown in colors. Limiting parallels, 37 30 and 38 15 39&quot;. Limiting 

 meridians, 119 and 120. Size, 29 by 31 inches. Scale, 1 : 125,000, or about 2 

 miles to 1 inch. Contour interval, 100 feet. Price, 25 cents. Also issued folded 

 between covers ; price, 40 cents. The Yosemite Valley is shown on a larger scale 

 on the Yosemite Valley map. See below. 



