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1912

San Jose quadrangle

1912

San Jose quadrangle

1912

San Jose quadrangle

1912

San Jose quadrangle

1912

San Jose quadrangle

1912

San Jose quadrangle

1912

San Jose quadrangle

1912

San Jose quadrangle

1912

San Jose quadrangle

1912

San Jose quadrangle

1912

San Jose quadrangle

1912

San Jose quadrangle

1912

San Jose quadrangle

1912

San Jose quadrangle

1912

San Jose quadrangle

1912

San Jose quadrangle

1912

San Jose quadrangle

1912

San Jose quadrangle

1912

San Jose quadrangle

1912

San Jose quadrangle

1912

San Jose quadrangle

1912

San Jose quadrangle

Geologic and topographic map …

Geologic and topographic map …

Almaden area geology and top …

1907

Frenchman's lake area