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Damming Grand Canyon The 1923 USGS Colorado River Expedition /
Published 2007Full text available:
Electronic eBook -
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Hell Or High Water James White's Disputed Passage through Grand Canyon, 1867 /
Published 2001Full text available:
Electronic eBook -
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Damming Grand Canyon : The 1923 USGS Colorado River Expedition /
Published 2007Full text available:
Electronic eBook -
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Hell Or High Water : James White's Disputed Passage through Grand Canyon, 1867 /
Published 2001Full text available:
Electronic eBook -
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A river running west the life of John Wesley Powell /
Published 2001An electronic book accessible through the World Wide Web; click to view
Electronic eBook