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|Material Type:||Clipart/images/graphics, Government publication, National government publication, Internet resource|
|Document Type:||Internet Resource, Map, Computer File|
|All Authors / Contributors:||
Clarence King; Samuel Franklin Emmons; A Hague; United States. Geological Exploration of the Fortieth Parallel.; United States. Army. Corps of Engineers.; David Rumsey Collection.; Cartography Associates.
|In:||United States. Geological Exploration of the Fortieth Parallel|
|Notes:||Relief shown by contours and spot heights.
"Grade curves: three hundred feet vertical interval."
"Map I, west half; map I, east half."
Includes 2 geological cross sections.
"The geological maps have been made upon the grade-curve foundation by the Geologist-in-charge, [Clarence King], S.F. Emmons, and Arnold Hague; geological sections at the bottom of geological maps by Arnold Hague and S.F. Emmons ..."--Legend [part of preface to atlas].
Scanned raster image of original: 1 map : col. ; 69 x 105 cm.
Original in the David Rumsey Collection; scanned by Cartography Associates.
|Cartographic Mathematical Data:||Scale [1:253,440]. 4 miles to 1 in.; (W 107Â°30Ê¹--W 104Â°30Ê¹/N 41Â°45Ê¹--N 40Â°30Ê¹).|