01342nem 2200397I 450 991070231000332120121228145128.0(CKB)5470000002427063(OCoLC)822977052(EXLCZ)99547000000242706320121227d2011 ca engb|||||||||||||||||||||durcn|||||||||rdacontentrdamediardacarrierBlankenship Well quadrangle, Arizona--Sonora 7.5-minute series /produced by the United States Geological Survey[Reston, Virginia] :U.S. Department of the Interior, U.S. Geological Survey,2011.1 online resource (1 map) colorRelief shown by contours and spot heights.Title from title screen (viewed Dec. 27, 2012)."Contour interval 20 feet."Includes location map and index of adjoining quadrangles.Blankenship Well quadrangle, Arizona--Sonora Pima County (Ariz.)MapsSonora (Mexico : State)MapsMaps.lcgftGPOGPOBOOK9910702310003321Blankenship Well quadrangle, Arizona--Sonora3490747UNINA