Monitoring of the Middle Fork of the San Joaquin River at
Devils Postpile National Monument
Last update: 29 September 2004

This web site provides information about stream flow in the Middle Fork of the San Joaquin River at Devils Postpile National Monument.

Anchored to the bottom of the river is an instrument called a 'Levelogger' (shown below). This instrument measures the pressure of the water above and this is translated into a water depth. The Levelogger also measures the temperature of the water.

Retrieval of a Levelogger in August 2004 by DEPO Ranger John

Graphs below show recent water depth and temperature.

Quick links for this web page:


Water Depth

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Water Temperature

Coming soon!
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Links for more information:

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