pubs.usgs.gov · MOUNT DR ' ADIT 65 APPROXIMATE MEAN DECLINATION. 1961 65 48 42 TEVENS+b J T WEST P...

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Transcript of pubs.usgs.gov · MOUNT DR ' ADIT 65 APPROXIMATE MEAN DECLINATION. 1961 65 48 42 TEVENS+b J T WEST P...

Page 1: pubs.usgs.gov · MOUNT DR ' ADIT 65 APPROXIMATE MEAN DECLINATION. 1961 65 48 42 TEVENS+b J T WEST P T 90 s. Tèá 15 s TO 1 led' MAMIE ADIT Strike and dip of beds Vertical shaft Portal