Geology of the magnesite belt of Stevens County, Washington
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Bulletin↗
Geology topics
John S. Loofbourow
Publications and source records attributed to John S. Loofbourow.
The Hobart Butte high-alumina clay deposit, Lane County, Oregon
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Circular↗
Geology of Santa Rosa Hills, eastern Purisima Hills district, Santa Barbara County, California
No abstract available.
California↗
Preliminary report as of July 23, 1943 on the high alumina clay deposit at Hobart Butte, Lane County, Oregon
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Open-File Report↗