McKenzie Table Mountain Preserve

Home > Sierra Foothills > McKenzie Table Mountain Preserve >  March 2009 Open House - Page 2


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Flowers - Panoramas




The tabletops are actually the ancient bed of the San Joaquin River. About 10 million years ago, a volcanic eruption filled the river with lava, which cooled and solidified over time. After the geologic uplift that created the Sierra Nevada, softer rocks surrounding the lava eroded away, leaving a ribbon of basalt that can be seen for miles in all directions. The bottom most layer of basalt cooled more slowly than overlying sections resulting in a cracking pattern similar to that found at Devil's Post pile and the Columns of the Giants,












It was a steep climb at this point.



A great view of the south tabletop and the low areas of the preserve.



This is an example of basalt that tumbled off the table top.  
Traditionally three broad categories of lichen have been recognized:
crustose (crusty),foliose(leafy), and fruticos (shrubby). 

(Thanks Fred for reminding me. I had almost forgotten)



The trail leads to a small saddle seperating the north and south tabletops which was lush with wild flowers.
Approximate Location:  N 37° 1.527'   W 119° 35.336'












The west side of a tabletop.



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Home > Sierra Foothills > McKenzie Table Mountain PreserveMarch 2009 Open House - Page 2

 
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Last Updated: 3/22/2009