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john-n: Alcatraz from ferry
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john-n: Hospital - West Garrison
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john-n: Hospital - West Garrison
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john-n: Captain's quarters - West Garrison
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john-n: West Garrison
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john-n: Ft. McDowell warehouse
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john-n: Tafoni in seawall sandstone - Ft. McDowell
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john-n: Tafoni in seawall sandstone - Ft. McDowell
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john-n: Serpentinite pit
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john-n: Rock crusher
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john-n: Golden Gate
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john-n: Quarry Point - Ft. McDowell
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john-n: Store at Ft. McDowell
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john-n: Meta-sandstone outcrop
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john-n: Bed of serpentinite road fill
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john-n: Meta-serpentinite - Perles Beach
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john-n: Blueschist
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john-n: Perles Beach Schist
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john-n: Serpentinite - Perles Beach
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john-n: Meta-serpentinite - Perles Beach
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john-n: Meta-serpentinite - Perles Beach
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john-n: Meta-serpentinite - Perles Beach
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john-n: DSCN0706
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john-n: Meta-shale Blueshist contact - Perles Beach
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john-n: Meta-shale - Perles Beach
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john-n: Cobweb in serpentinite - Perles Beach
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john-n: Blue Angles from Perles Beach
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john-n: Blue Angles from Perles Beach
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john-n: Metamorphosed pillow basalt - Perles Beach
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john-n: Metamorphosed pillow basalt - Perles Beach