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Los Osos Sandstone Hill

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To the east of Morro Bay lies this low sandstone hill formed of Pleistocene marine sedimentaries. Chaparral covers much of the hill but there is some oak woodland and grassland. The rare Arctostaphylos cruzensis is found here, as are Arctostaphylos morroensis and Arctostaphylos glauca.

Marine invertebrate fossils are present.

Integrity: There has been some quarrying at either end of the hill, but much of the vegetation is fairly undisturbed.

Use: Private

January 1978

San Luis Obispo
Inventory of California Natural Areas
Revision © 2005 Steven Louis Hartman

 

 

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Last modified: December 06, 2005