Digital archive-report upon the Colorado River of the West [electronic resource] : Explored in 1857 and 1858 by Liutenant Joseph C. Ives, Geological Report with maps by John S. Newberry. - [Washington] : US Department of the Interior, 2002. - 1 compact disk ; 12 cm.. - System requirements: IBM PC. - [n. p.][MFN: 105]
Berrien country, Michigan,June 2003 [electronic resource] : US Geological survey open-file report 03-342. - US : U.S. depart. of the interior, 2003. - computer disk ; 3 1/2 in. - System requirements: IBM PC. - [MFN: 723]
Summary: This CDRom records one of many geological field sessions in Berrien country. It contains drilling logs and photographs of the two new cores and a brief discussion of the unique bear cave tufa and fossils
Digital Archive. The Exploring Expedition of 1859-USGS OFR 00-368 [electronic resource] : US geological survey open-file report 00-368.Version 1.0. - US : Depart,of the interior & US geolog. survey, 2000. - computer disk ; 3 1/2 in. - System requirements: IBM PC. - [MFN: 1150]
Summary: This Cd contains two of archival treasures of the 19th century, united, as intended, for the first time
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