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Map Satellite Manning Flat supports an intermittent vernal pool; some years there is a vernal pool with the typical plant associations, in other years the area is dry.
Three rare plants are reported from this area, Lasthenia burkei, Navarretia pubescens and Parvisedum leiocarpum.
Integrity: Several decades ago a drainage channel was opened to Thurston Lake to the north, with the result that the flat is being continually eroded. It has suffered from motorcycle use.
Use: Private
February 1977
Inventory of California Natural Areas
Revision © 2008 Steven Louis Hartman
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