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RussellRanchCluster.jpg - File Upload Bot (Magnus Manske)

Bulletin of the Department of Geology of the University of California (1896) (20447561405).jpg - Fæ

Annual report of the State Mineralogist for the year ending (1883) (14755251246).jpg - SteinsplitterBot

Layers of time - panoramio.jpg - Panoramio upload bot

Geology and oil resources of the Santa Maria oil district (IA geologyoilresour00arno 0).pdf - Fæ